20817300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 71995392

約数和(自身を除く): 51178092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 75, 84, 92, 100, 105, 115, 138, 140, 150, 161, 175, 210, 230, 276, 300, 322, 345, 350, 420, 431, 460, 483, 525, 575, 644, 690, 700, 805, 862, 966, 1050, 1150, 1293, 1380, 1610, 1724, 1725, 1932, 2100, 2155, 2300, 2415, 2586, 3017, 3220, 3450, 4025, 4310, 4830, 5172, 6034, 6465, 6900, 8050, 8620, 9051, 9660, 9913, 10775, 12068, 12075, 12930, 15085, 16100, 18102, 19826, 21550, 24150, 25860, 29739, 30170, 32325, 36204, 39652, 43100, 45255, 48300, 49565, 59478, 60340, 64650, 69391, 75425, 90510, 99130, 118956, 129300, 138782, 148695, 150850, 181020, 198260, 208173, 226275, 247825, 277564, 297390, 301700, 346955, 416346, 452550, 495650, 594780, 693910, 743475, 832692, 905100, 991300, 1040865, 1387820, 1486950, 1734775, 2081730, 2973900, 3469550, 4163460, 5204325, 6939100, 10408650, 20817300]

約数ペア:

[(1, 20817300), (2, 10408650), (3, 6939100), (4, 5204325), (5, 4163460), (6, 3469550), (7, 2973900), (10, 2081730), (12, 1734775), (14, 1486950), (15, 1387820), (20, 1040865), (21, 991300), (23, 905100), (25, 832692), (28, 743475), (30, 693910), (35, 594780), (42, 495650), (46, 452550), (50, 416346), (60, 346955), (69, 301700), (70, 297390), (75, 277564), (84, 247825), (92, 226275), (100, 208173), (105, 198260), (115, 181020), (138, 150850), (140, 148695), (150, 138782), (161, 129300), (175, 118956), (210, 99130), (230, 90510), (276, 75425), (300, 69391), (322, 64650), (345, 60340), (350, 59478), (420, 49565), (431, 48300), (460, 45255), (483, 43100), (525, 39652), (575, 36204), (644, 32325), (690, 30170), (700, 29739), (805, 25860), (862, 24150), (966, 21550), (1050, 19826), (1150, 18102), (1293, 16100), (1380, 15085), (1610, 12930), (1724, 12075), (1725, 12068), (1932, 10775), (2100, 9913), (2155, 9660), (2300, 9051), (2415, 8620), (2586, 8050), (3017, 6900), (3220, 6465), (3450, 6034), (4025, 5172), (4310, 4830)]