20800380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 61544448

約数和(自身を除く): 40744068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 53, 60, 62, 93, 106, 124, 155, 159, 186, 211, 212, 265, 310, 318, 372, 422, 465, 530, 620, 633, 636, 795, 844, 930, 1055, 1060, 1266, 1590, 1643, 1860, 2110, 2532, 3165, 3180, 3286, 4220, 4929, 6330, 6541, 6572, 8215, 9858, 11183, 12660, 13082, 16430, 19623, 19716, 22366, 24645, 26164, 32705, 32860, 33549, 39246, 44732, 49290, 55915, 65410, 67098, 78492, 98115, 98580, 111830, 130820, 134196, 167745, 196230, 223660, 335490, 346673, 392460, 670980, 693346, 1040019, 1386692, 1733365, 2080038, 3466730, 4160076, 5200095, 6933460, 10400190, 20800380]

約数ペア:

[(1, 20800380), (2, 10400190), (3, 6933460), (4, 5200095), (5, 4160076), (6, 3466730), (10, 2080038), (12, 1733365), (15, 1386692), (20, 1040019), (30, 693346), (31, 670980), (53, 392460), (60, 346673), (62, 335490), (93, 223660), (106, 196230), (124, 167745), (155, 134196), (159, 130820), (186, 111830), (211, 98580), (212, 98115), (265, 78492), (310, 67098), (318, 65410), (372, 55915), (422, 49290), (465, 44732), (530, 39246), (620, 33549), (633, 32860), (636, 32705), (795, 26164), (844, 24645), (930, 22366), (1055, 19716), (1060, 19623), (1266, 16430), (1590, 13082), (1643, 12660), (1860, 11183), (2110, 9858), (2532, 8215), (3165, 6572), (3180, 6541), (3286, 6330), (4220, 4929)]