178978890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{2153}}^1$

素因数の和:2343

約数の個数: 64

約数和(自身を含む): 457819776

約数和(自身を除く): 278840886

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 163, 170, 255, 326, 489, 510, 815, 978, 1630, 2153, 2445, 2771, 4306, 4890, 5542, 6459, 8313, 10765, 12918, 13855, 16626, 21530, 27710, 32295, 36601, 41565, 64590, 73202, 83130, 109803, 183005, 219606, 350939, 366010, 549015, 701878, 1052817, 1098030, 1754695, 2105634, 3509390, 5264085, 5965963, 10528170, 11931926, 17897889, 29829815, 35795778, 59659630, 89489445, 178978890]

約数ペア:

[(1, 178978890), (2, 89489445), (3, 59659630), (5, 35795778), (6, 29829815), (10, 17897889), (15, 11931926), (17, 10528170), (30, 5965963), (34, 5264085), (51, 3509390), (85, 2105634), (102, 1754695), (163, 1098030), (170, 1052817), (255, 701878), (326, 549015), (489, 366010), (510, 350939), (815, 219606), (978, 183005), (1630, 109803), (2153, 83130), (2445, 73202), (2771, 64590), (4306, 41565), (4890, 36601), (5542, 32295), (6459, 27710), (8313, 21530), (10765, 16626), (12918, 13855)]