19563560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 26401240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 151, 158, 164, 205, 302, 316, 328, 395, 410, 604, 632, 755, 790, 820, 1208, 1510, 1580, 1640, 3020, 3160, 3239, 6040, 6191, 6478, 11929, 12382, 12956, 16195, 23858, 24764, 25912, 30955, 32390, 47716, 49528, 59645, 61910, 64780, 95432, 119290, 123820, 129560, 238580, 247640, 477160, 489089, 978178, 1956356, 2445445, 3912712, 4890890, 9781780, 19563560]

約数ペア:

[(1, 19563560), (2, 9781780), (4, 4890890), (5, 3912712), (8, 2445445), (10, 1956356), (20, 978178), (40, 489089), (41, 477160), (79, 247640), (82, 238580), (151, 129560), (158, 123820), (164, 119290), (205, 95432), (302, 64780), (316, 61910), (328, 59645), (395, 49528), (410, 47716), (604, 32390), (632, 30955), (755, 25912), (790, 24764), (820, 23858), (1208, 16195), (1510, 12956), (1580, 12382), (1640, 11929), (3020, 6478), (3160, 6191), (3239, 6040)]