81857880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17491}}^1$

素因数の和:17521

約数の個数: 96

約数和(自身を含む): 286518960

約数和(自身を除く): 204661080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4680, 17491, 34982, 52473, 69964, 87455, 104946, 139928, 157419, 174910, 209892, 227383, 262365, 314838, 349820, 419784, 454766, 524730, 629676, 682149, 699640, 787095, 909532, 1049460, 1136915, 1259352, 1364298, 1574190, 1819064, 2046447, 2098920, 2273830, 2728596, 3148380, 3410745, 4092894, 4547660, 5457192, 6296760, 6821490, 8185788, 9095320, 10232235, 13642980, 16371576, 20464470, 27285960, 40928940, 81857880]

約数ペア:

[(1, 81857880), (2, 40928940), (3, 27285960), (4, 20464470), (5, 16371576), (6, 13642980), (8, 10232235), (9, 9095320), (10, 8185788), (12, 6821490), (13, 6296760), (15, 5457192), (18, 4547660), (20, 4092894), (24, 3410745), (26, 3148380), (30, 2728596), (36, 2273830), (39, 2098920), (40, 2046447), (45, 1819064), (52, 1574190), (60, 1364298), (65, 1259352), (72, 1136915), (78, 1049460), (90, 909532), (104, 787095), (117, 699640), (120, 682149), (130, 629676), (156, 524730), (180, 454766), (195, 419784), (234, 349820), (260, 314838), (312, 262365), (360, 227383), (390, 209892), (468, 174910), (520, 157419), (585, 139928), (780, 104946), (936, 87455), (1170, 69964), (1560, 52473), (2340, 34982), (4680, 17491)]