20021036240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{983}}^1\times {\mathrm{8779}}^1$

素因数の和:9804

約数の個数: 80

約数和(自身を含む): 48208521600

約数和(自身を除く): 28187485360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 983, 1160, 1966, 2320, 3932, 4915, 7864, 8779, 9830, 15728, 17558, 19660, 28507, 35116, 39320, 43895, 57014, 70232, 78640, 87790, 114028, 140464, 142535, 175580, 228056, 254591, 285070, 351160, 456112, 509182, 570140, 702320, 1018364, 1140280, 1272955, 2036728, 2280560, 2545910, 4073456, 5091820, 8629757, 10183640, 17259514, 20367280, 34519028, 43148785, 69038056, 86297570, 138076112, 172595140, 250262953, 345190280, 500525906, 690380560, 1001051812, 1251314765, 2002103624, 2502629530, 4004207248, 5005259060, 10010518120, 20021036240]

約数ペア:

[(1, 20021036240), (2, 10010518120), (4, 5005259060), (5, 4004207248), (8, 2502629530), (10, 2002103624), (16, 1251314765), (20, 1001051812), (29, 690380560), (40, 500525906), (58, 345190280), (80, 250262953), (116, 172595140), (145, 138076112), (232, 86297570), (290, 69038056), (464, 43148785), (580, 34519028), (983, 20367280), (1160, 17259514), (1966, 10183640), (2320, 8629757), (3932, 5091820), (4915, 4073456), (7864, 2545910), (8779, 2280560), (9830, 2036728), (15728, 1272955), (17558, 1140280), (19660, 1018364), (28507, 702320), (35116, 570140), (39320, 509182), (43895, 456112), (57014, 351160), (70232, 285070), (78640, 254591), (87790, 228056), (114028, 175580), (140464, 142535)]