19990467900

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{63281}}^1$

素因数の和:63323

約数の個数: 216

約数和(自身を含む): 69979260624

約数和(自身を除く): 49988792724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 81, 90, 100, 108, 117, 130, 135, 150, 156, 162, 180, 195, 225, 234, 243, 260, 270, 300, 324, 325, 351, 390, 405, 450, 468, 486, 540, 585, 650, 675, 702, 780, 810, 900, 972, 975, 1053, 1170, 1215, 1300, 1350, 1404, 1620, 1755, 1950, 2025, 2106, 2340, 2430, 2700, 2925, 3159, 3510, 3900, 4050, 4212, 4860, 5265, 5850, 6075, 6318, 7020, 8100, 8775, 10530, 11700, 12150, 12636, 15795, 17550, 21060, 24300, 26325, 31590, 35100, 52650, 63180, 63281, 78975, 105300, 126562, 157950, 189843, 253124, 315900, 316405, 379686, 569529, 632810, 759372, 822653, 949215, 1139058, 1265620, 1582025, 1645306, 1708587, 1898430, 2278116, 2467959, 2847645, 3164050, 3290612, 3417174, 3796860, 4113265, 4746075, 4935918, 5125761, 5695290, 6328100, 6834348, 7403877, 8226530, 8542935, 9492150, 9871836, 10251522, 11390580, 12339795, 14238225, 14807754, 15377283, 16453060, 17085870, 18984300, 20503044, 20566325, 22211631, 24679590, 25628805, 28476450, 29615508, 30754566, 34171740, 37019385, 41132650, 42714675, 44423262, 49359180, 51257610, 56952900, 61509132, 61698975, 66634893, 74038770, 76886415, 82265300, 85429350, 88846524, 102515220, 111058155, 123397950, 128144025, 133269786, 148077540, 153772830, 170858700, 185096925, 199904679, 222116310, 246795900, 256288050, 266539572, 307545660, 333174465, 370193850, 384432075, 399809358, 444232620, 512576100, 555290775, 666348930, 740387700, 768864150, 799618716, 999523395, 1110581550, 1332697860, 1537728300, 1665872325, 1999046790, 2221163100, 3331744650, 3998093580, 4997616975, 6663489300, 9995233950, 19990467900]

約数ペア:

[(1, 19990467900), (2, 9995233950), (3, 6663489300), (4, 4997616975), (5, 3998093580), (6, 3331744650), (9, 2221163100), (10, 1999046790), (12, 1665872325), (13, 1537728300), (15, 1332697860), (18, 1110581550), (20, 999523395), (25, 799618716), (26, 768864150), (27, 740387700), (30, 666348930), (36, 555290775), (39, 512576100), (45, 444232620), (50, 399809358), (52, 384432075), (54, 370193850), (60, 333174465), (65, 307545660), (75, 266539572), (78, 256288050), (81, 246795900), (90, 222116310), (100, 199904679), (108, 185096925), (117, 170858700), (130, 153772830), (135, 148077540), (150, 133269786), (156, 128144025), (162, 123397950), (180, 111058155), (195, 102515220), (225, 88846524), (234, 85429350), (243, 82265300), (260, 76886415), (270, 74038770), (300, 66634893), (324, 61698975), (325, 61509132), (351, 56952900), (390, 51257610), (405, 49359180), (450, 44423262), (468, 42714675), (486, 41132650), (540, 37019385), (585, 34171740), (650, 30754566), (675, 29615508), (702, 28476450), (780, 25628805), (810, 24679590), (900, 22211631), (972, 20566325), (975, 20503044), (1053, 18984300), (1170, 17085870), (1215, 16453060), (1300, 15377283), (1350, 14807754), (1404, 14238225), (1620, 12339795), (1755, 11390580), (1950, 10251522), (2025, 9871836), (2106, 9492150), (2340, 8542935), (2430, 8226530), (2700, 7403877), (2925, 6834348), (3159, 6328100), (3510, 5695290), (3900, 5125761), (4050, 4935918), (4212, 4746075), (4860, 4113265), (5265, 3796860), (5850, 3417174), (6075, 3290612), (6318, 3164050), (7020, 2847645), (8100, 2467959), (8775, 2278116), (10530, 1898430), (11700, 1708587), (12150, 1645306), (12636, 1582025), (15795, 1265620), (17550, 1139058), (21060, 949215), (24300, 822653), (26325, 759372), (31590, 632810), (35100, 569529), (52650, 379686), (63180, 316405), (63281, 315900), (78975, 253124), (105300, 189843), (126562, 157950)]