21634160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 54341760

約数和(自身を除く): 32707600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 331, 344, 380, 430, 662, 688, 760, 817, 860, 1324, 1520, 1634, 1655, 1720, 2648, 3268, 3310, 3440, 4085, 5296, 6289, 6536, 6620, 8170, 12578, 13072, 13240, 14233, 16340, 25156, 26480, 28466, 31445, 32680, 50312, 56932, 62890, 65360, 71165, 100624, 113864, 125780, 142330, 227728, 251560, 270427, 284660, 503120, 540854, 569320, 1081708, 1138640, 1352135, 2163416, 2704270, 4326832, 5408540, 10817080, 21634160]

約数ペア:

[(1, 21634160), (2, 10817080), (4, 5408540), (5, 4326832), (8, 2704270), (10, 2163416), (16, 1352135), (19, 1138640), (20, 1081708), (38, 569320), (40, 540854), (43, 503120), (76, 284660), (80, 270427), (86, 251560), (95, 227728), (152, 142330), (172, 125780), (190, 113864), (215, 100624), (304, 71165), (331, 65360), (344, 62890), (380, 56932), (430, 50312), (662, 32680), (688, 31445), (760, 28466), (817, 26480), (860, 25156), (1324, 16340), (1520, 14233), (1634, 13240), (1655, 13072), (1720, 12578), (2648, 8170), (3268, 6620), (3310, 6536), (3440, 6289), (4085, 5296)]