19747800

素因数分解:

$2^3\times 3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:104

約数の個数: 240

約数和(自身を含む): 72919440

約数和(自身を除く): 53171640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 27, 30, 36, 40, 45, 46, 50, 53, 54, 60, 69, 72, 75, 81, 90, 92, 100, 106, 108, 115, 120, 135, 138, 150, 159, 162, 180, 184, 200, 207, 212, 216, 225, 230, 265, 270, 276, 300, 318, 324, 345, 360, 405, 414, 424, 450, 460, 477, 530, 540, 552, 575, 600, 621, 636, 648, 675, 690, 795, 810, 828, 900, 920, 954, 1035, 1060, 1080, 1150, 1219, 1242, 1272, 1325, 1350, 1380, 1431, 1590, 1620, 1656, 1725, 1800, 1863, 1908, 2025, 2070, 2120, 2300, 2385, 2438, 2484, 2650, 2700, 2760, 2862, 3105, 3180, 3240, 3450, 3657, 3726, 3816, 3975, 4050, 4140, 4293, 4600, 4770, 4876, 4968, 5175, 5300, 5400, 5724, 6095, 6210, 6360, 6900, 7155, 7314, 7452, 7950, 8100, 8280, 8586, 9315, 9540, 9752, 10350, 10600, 10971, 11448, 11925, 12190, 12420, 13800, 14310, 14628, 14904, 15525, 15900, 16200, 17172, 18285, 18630, 19080, 20700, 21465, 21942, 23850, 24380, 24840, 28620, 29256, 30475, 31050, 31800, 32913, 34344, 35775, 36570, 37260, 41400, 42930, 43884, 46575, 47700, 48760, 54855, 57240, 60950, 62100, 65826, 71550, 73140, 74520, 85860, 87768, 91425, 93150, 95400, 98739, 107325, 109710, 121900, 124200, 131652, 143100, 146280, 164565, 171720, 182850, 186300, 197478, 214650, 219420, 243800, 263304, 274275, 286200, 329130, 365700, 372600, 394956, 429300, 438840, 493695, 548550, 658260, 731400, 789912, 822825, 858600, 987390, 1097100, 1316520, 1645650, 1974780, 2194200, 2468475, 3291300, 3949560, 4936950, 6582600, 9873900, 19747800]

約数ペア:

[(1, 19747800), (2, 9873900), (3, 6582600), (4, 4936950), (5, 3949560), (6, 3291300), (8, 2468475), (9, 2194200), (10, 1974780), (12, 1645650), (15, 1316520), (18, 1097100), (20, 987390), (23, 858600), (24, 822825), (25, 789912), (27, 731400), (30, 658260), (36, 548550), (40, 493695), (45, 438840), (46, 429300), (50, 394956), (53, 372600), (54, 365700), (60, 329130), (69, 286200), (72, 274275), (75, 263304), (81, 243800), (90, 219420), (92, 214650), (100, 197478), (106, 186300), (108, 182850), (115, 171720), (120, 164565), (135, 146280), (138, 143100), (150, 131652), (159, 124200), (162, 121900), (180, 109710), (184, 107325), (200, 98739), (207, 95400), (212, 93150), (216, 91425), (225, 87768), (230, 85860), (265, 74520), (270, 73140), (276, 71550), (300, 65826), (318, 62100), (324, 60950), (345, 57240), (360, 54855), (405, 48760), (414, 47700), (424, 46575), (450, 43884), (460, 42930), (477, 41400), (530, 37260), (540, 36570), (552, 35775), (575, 34344), (600, 32913), (621, 31800), (636, 31050), (648, 30475), (675, 29256), (690, 28620), (795, 24840), (810, 24380), (828, 23850), (900, 21942), (920, 21465), (954, 20700), (1035, 19080), (1060, 18630), (1080, 18285), (1150, 17172), (1219, 16200), (1242, 15900), (1272, 15525), (1325, 14904), (1350, 14628), (1380, 14310), (1431, 13800), (1590, 12420), (1620, 12190), (1656, 11925), (1725, 11448), (1800, 10971), (1863, 10600), (1908, 10350), (2025, 9752), (2070, 9540), (2120, 9315), (2300, 8586), (2385, 8280), (2438, 8100), (2484, 7950), (2650, 7452), (2700, 7314), (2760, 7155), (2862, 6900), (3105, 6360), (3180, 6210), (3240, 6095), (3450, 5724), (3657, 5400), (3726, 5300), (3816, 5175), (3975, 4968), (4050, 4876), (4140, 4770), (4293, 4600)]