78589960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1142

約数の個数: 64

約数和(自身を含む): 185702400

約数和(自身を除く): 107112440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1039, 1220, 1240, 1891, 2078, 2440, 3782, 4156, 5195, 7564, 8312, 9455, 10390, 15128, 18910, 20780, 32209, 37820, 41560, 63379, 64418, 75640, 126758, 128836, 161045, 253516, 257672, 316895, 322090, 507032, 633790, 644180, 1267580, 1288360, 1964749, 2535160, 3929498, 7858996, 9823745, 15717992, 19647490, 39294980, 78589960]

約数ペア:

[(1, 78589960), (2, 39294980), (4, 19647490), (5, 15717992), (8, 9823745), (10, 7858996), (20, 3929498), (31, 2535160), (40, 1964749), (61, 1288360), (62, 1267580), (122, 644180), (124, 633790), (155, 507032), (244, 322090), (248, 316895), (305, 257672), (310, 253516), (488, 161045), (610, 128836), (620, 126758), (1039, 75640), (1220, 64418), (1240, 63379), (1891, 41560), (2078, 37820), (2440, 32209), (3782, 20780), (4156, 18910), (5195, 15128), (7564, 10390), (8312, 9455)]