20187450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:528

約数の個数: 72

約数和(自身を含む): 54854748

約数和(自身を除く): 34667298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 113, 150, 225, 226, 339, 397, 450, 565, 678, 794, 1017, 1130, 1191, 1695, 1985, 2034, 2382, 2825, 3390, 3573, 3970, 5085, 5650, 5955, 7146, 8475, 9925, 10170, 11910, 16950, 17865, 19850, 25425, 29775, 35730, 44861, 50850, 59550, 89325, 89722, 134583, 178650, 224305, 269166, 403749, 448610, 672915, 807498, 1121525, 1345830, 2018745, 2243050, 3364575, 4037490, 6729150, 10093725, 20187450]

約数ペア:

[(1, 20187450), (2, 10093725), (3, 6729150), (5, 4037490), (6, 3364575), (9, 2243050), (10, 2018745), (15, 1345830), (18, 1121525), (25, 807498), (30, 672915), (45, 448610), (50, 403749), (75, 269166), (90, 224305), (113, 178650), (150, 134583), (225, 89722), (226, 89325), (339, 59550), (397, 50850), (450, 44861), (565, 35730), (678, 29775), (794, 25425), (1017, 19850), (1130, 17865), (1191, 16950), (1695, 11910), (1985, 10170), (2034, 9925), (2382, 8475), (2825, 7146), (3390, 5955), (3573, 5650), (3970, 5085)]