20840850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1597}}^1$

素因数の和:1644

約数の個数: 72

約数和(自身を含む): 57959460

約数和(自身を除く): 37118610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 29, 30, 45, 50, 58, 75, 87, 90, 145, 150, 174, 225, 261, 290, 435, 450, 522, 725, 870, 1305, 1450, 1597, 2175, 2610, 3194, 4350, 4791, 6525, 7985, 9582, 13050, 14373, 15970, 23955, 28746, 39925, 46313, 47910, 71865, 79850, 92626, 119775, 138939, 143730, 231565, 239550, 277878, 359325, 416817, 463130, 694695, 718650, 833634, 1157825, 1389390, 2084085, 2315650, 3473475, 4168170, 6946950, 10420425, 20840850]

約数ペア:

[(1, 20840850), (2, 10420425), (3, 6946950), (5, 4168170), (6, 3473475), (9, 2315650), (10, 2084085), (15, 1389390), (18, 1157825), (25, 833634), (29, 718650), (30, 694695), (45, 463130), (50, 416817), (58, 359325), (75, 277878), (87, 239550), (90, 231565), (145, 143730), (150, 138939), (174, 119775), (225, 92626), (261, 79850), (290, 71865), (435, 47910), (450, 46313), (522, 39925), (725, 28746), (870, 23955), (1305, 15970), (1450, 14373), (1597, 13050), (2175, 9582), (2610, 7985), (3194, 6525), (4350, 4791)]