81725460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4217}}^1$

素因数の和:4265

約数の個数: 96

約数和(自身を含む): 255104640

約数和(自身を除く): 173379180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1140, 1292, 1615, 1938, 3230, 3876, 4217, 4845, 6460, 8434, 9690, 12651, 16868, 19380, 21085, 25302, 42170, 50604, 63255, 71689, 80123, 84340, 126510, 143378, 160246, 215067, 240369, 253020, 286756, 320492, 358445, 400615, 430134, 480738, 716890, 801230, 860268, 961476, 1075335, 1201845, 1362091, 1433780, 1602460, 2150670, 2403690, 2724182, 4086273, 4301340, 4807380, 5448364, 6810455, 8172546, 13620910, 16345092, 20431365, 27241820, 40862730, 81725460]

約数ペア:

[(1, 81725460), (2, 40862730), (3, 27241820), (4, 20431365), (5, 16345092), (6, 13620910), (10, 8172546), (12, 6810455), (15, 5448364), (17, 4807380), (19, 4301340), (20, 4086273), (30, 2724182), (34, 2403690), (38, 2150670), (51, 1602460), (57, 1433780), (60, 1362091), (68, 1201845), (76, 1075335), (85, 961476), (95, 860268), (102, 801230), (114, 716890), (170, 480738), (190, 430134), (204, 400615), (228, 358445), (255, 320492), (285, 286756), (323, 253020), (340, 240369), (380, 215067), (510, 160246), (570, 143378), (646, 126510), (969, 84340), (1020, 80123), (1140, 71689), (1292, 63255), (1615, 50604), (1938, 42170), (3230, 25302), (3876, 21085), (4217, 19380), (4845, 16868), (6460, 12651), (8434, 9690)]