221560720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2179}}^1$

素因数の和:2264

約数の個数: 80

約数和(自身を含む): 544965120

約数和(自身を除く): 323404400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 2179, 2480, 2542, 3280, 4358, 5084, 6355, 8716, 10168, 10895, 12710, 17432, 20336, 21790, 25420, 34864, 43580, 50840, 67549, 87160, 89339, 101680, 135098, 174320, 178678, 270196, 337745, 357356, 446695, 540392, 675490, 714712, 893390, 1080784, 1350980, 1429424, 1786780, 2701960, 2769509, 3573560, 5403920, 5539018, 7147120, 11078036, 13847545, 22156072, 27695090, 44312144, 55390180, 110780360, 221560720]

約数ペア:

[(1, 221560720), (2, 110780360), (4, 55390180), (5, 44312144), (8, 27695090), (10, 22156072), (16, 13847545), (20, 11078036), (31, 7147120), (40, 5539018), (41, 5403920), (62, 3573560), (80, 2769509), (82, 2701960), (124, 1786780), (155, 1429424), (164, 1350980), (205, 1080784), (248, 893390), (310, 714712), (328, 675490), (410, 540392), (496, 446695), (620, 357356), (656, 337745), (820, 270196), (1240, 178678), (1271, 174320), (1640, 135098), (2179, 101680), (2480, 89339), (2542, 87160), (3280, 67549), (4358, 50840), (5084, 43580), (6355, 34864), (8716, 25420), (10168, 21790), (10895, 20336), (12710, 17432)]