64720908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3251}}^1$

素因数の和:3347

約数の個数: 72

約数和(自身を含む): 189396480

約数和(自身を除く): 124675572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1106, 1422, 1659, 2212, 2844, 3251, 3318, 4977, 6502, 6636, 9753, 9954, 13004, 19506, 19908, 22757, 29259, 39012, 45514, 58518, 68271, 91028, 117036, 136542, 204813, 256829, 273084, 409626, 513658, 770487, 819252, 1027316, 1540974, 1797803, 2311461, 3081948, 3595606, 4622922, 5393409, 7191212, 9245844, 10786818, 16180227, 21573636, 32360454, 64720908]

約数ペア:

[(1, 64720908), (2, 32360454), (3, 21573636), (4, 16180227), (6, 10786818), (7, 9245844), (9, 7191212), (12, 5393409), (14, 4622922), (18, 3595606), (21, 3081948), (28, 2311461), (36, 1797803), (42, 1540974), (63, 1027316), (79, 819252), (84, 770487), (126, 513658), (158, 409626), (237, 273084), (252, 256829), (316, 204813), (474, 136542), (553, 117036), (711, 91028), (948, 68271), (1106, 58518), (1422, 45514), (1659, 39012), (2212, 29259), (2844, 22757), (3251, 19908), (3318, 19506), (4977, 13004), (6502, 9954), (6636, 9753)]