221278600

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{15583}}^1$

素因数の和:15670

約数の個数: 48

約数和(自身を含む): 521752320

約数和(自身を除く): 300473720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2840, 3550, 7100, 14200, 15583, 31166, 62332, 77915, 124664, 155830, 311660, 389575, 623320, 779150, 1106393, 1558300, 2212786, 3116600, 4425572, 5531965, 8851144, 11063930, 22127860, 27659825, 44255720, 55319650, 110639300, 221278600]

約数ペア:

[(1, 221278600), (2, 110639300), (4, 55319650), (5, 44255720), (8, 27659825), (10, 22127860), (20, 11063930), (25, 8851144), (40, 5531965), (50, 4425572), (71, 3116600), (100, 2212786), (142, 1558300), (200, 1106393), (284, 779150), (355, 623320), (568, 389575), (710, 311660), (1420, 155830), (1775, 124664), (2840, 77915), (3550, 62332), (7100, 31166), (14200, 15583)]