398032960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{587}}^1$

素因数の和:780

約数の個数: 112

約数和(自身を含む): 1028736576

約数和(自身を除く): 630703616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 163, 208, 260, 320, 326, 416, 520, 587, 652, 815, 832, 1040, 1174, 1304, 1630, 2080, 2119, 2348, 2608, 2935, 3260, 4160, 4238, 4696, 5216, 5870, 6520, 7631, 8476, 9392, 10432, 10595, 11740, 13040, 15262, 16952, 18784, 21190, 23480, 26080, 30524, 33904, 37568, 38155, 42380, 46960, 52160, 61048, 67808, 76310, 84760, 93920, 95681, 122096, 135616, 152620, 169520, 187840, 191362, 244192, 305240, 339040, 382724, 478405, 488384, 610480, 678080, 765448, 956810, 1220960, 1243853, 1530896, 1913620, 2441920, 2487706, 3061792, 3827240, 4975412, 6123584, 6219265, 7654480, 9950824, 12438530, 15308960, 19901648, 24877060, 30617920, 39803296, 49754120, 79606592, 99508240, 199016480, 398032960]

約数ペア:

[(1, 398032960), (2, 199016480), (4, 99508240), (5, 79606592), (8, 49754120), (10, 39803296), (13, 30617920), (16, 24877060), (20, 19901648), (26, 15308960), (32, 12438530), (40, 9950824), (52, 7654480), (64, 6219265), (65, 6123584), (80, 4975412), (104, 3827240), (130, 3061792), (160, 2487706), (163, 2441920), (208, 1913620), (260, 1530896), (320, 1243853), (326, 1220960), (416, 956810), (520, 765448), (587, 678080), (652, 610480), (815, 488384), (832, 478405), (1040, 382724), (1174, 339040), (1304, 305240), (1630, 244192), (2080, 191362), (2119, 187840), (2348, 169520), (2608, 152620), (2935, 135616), (3260, 122096), (4160, 95681), (4238, 93920), (4696, 84760), (5216, 76310), (5870, 67808), (6520, 61048), (7631, 52160), (8476, 46960), (9392, 42380), (10432, 38155), (10595, 37568), (11740, 33904), (13040, 30524), (15262, 26080), (16952, 23480), (18784, 21190)]