12910111820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{127747}}^1$

素因数の和:127950

約数の個数: 48

約数和(自身を含む): 28157703168

約数和(自身を除く): 15247591348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 163, 310, 326, 620, 652, 815, 1630, 3260, 5053, 10106, 20212, 25265, 50530, 101060, 127747, 255494, 510988, 638735, 1277470, 2554940, 3960157, 7920314, 15840628, 19800785, 20822761, 39601570, 41645522, 79203140, 83291044, 104113805, 208227610, 416455220, 645505591, 1291011182, 2582022364, 3227527955, 6455055910, 12910111820]

約数ペア:

[(1, 12910111820), (2, 6455055910), (4, 3227527955), (5, 2582022364), (10, 1291011182), (20, 645505591), (31, 416455220), (62, 208227610), (124, 104113805), (155, 83291044), (163, 79203140), (310, 41645522), (326, 39601570), (620, 20822761), (652, 19800785), (815, 15840628), (1630, 7920314), (3260, 3960157), (5053, 2554940), (10106, 1277470), (20212, 638735), (25265, 510988), (50530, 255494), (101060, 127747)]