78736760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 187747200

約数和(自身を除く): 109010440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 211, 380, 422, 491, 760, 844, 982, 1055, 1688, 1964, 2110, 2455, 3928, 4009, 4220, 4910, 8018, 8440, 9329, 9820, 16036, 18658, 19640, 20045, 32072, 37316, 40090, 46645, 74632, 80180, 93290, 103601, 160360, 186580, 207202, 373160, 414404, 518005, 828808, 1036010, 1968419, 2072020, 3936838, 4144040, 7873676, 9842095, 15747352, 19684190, 39368380, 78736760]

約数ペア:

[(1, 78736760), (2, 39368380), (4, 19684190), (5, 15747352), (8, 9842095), (10, 7873676), (19, 4144040), (20, 3936838), (38, 2072020), (40, 1968419), (76, 1036010), (95, 828808), (152, 518005), (190, 414404), (211, 373160), (380, 207202), (422, 186580), (491, 160360), (760, 103601), (844, 93290), (982, 80180), (1055, 74632), (1688, 46645), (1964, 40090), (2110, 37316), (2455, 32072), (3928, 20045), (4009, 19640), (4220, 18658), (4910, 16036), (8018, 9820), (8440, 9329)]