218364580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{1367}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 537098688

約数和(自身を除く): 318734108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 163, 196, 245, 326, 490, 652, 815, 980, 1141, 1367, 1630, 2282, 2734, 3260, 4564, 5468, 5705, 6835, 7987, 9569, 11410, 13670, 15974, 19138, 22820, 27340, 31948, 38276, 39935, 47845, 66983, 79870, 95690, 133966, 159740, 191380, 222821, 267932, 334915, 445642, 669830, 891284, 1114105, 1339660, 1559747, 2228210, 3119494, 4456420, 6238988, 7798735, 10918229, 15597470, 21836458, 31194940, 43672916, 54591145, 109182290, 218364580]

約数ペア:

[(1, 218364580), (2, 109182290), (4, 54591145), (5, 43672916), (7, 31194940), (10, 21836458), (14, 15597470), (20, 10918229), (28, 7798735), (35, 6238988), (49, 4456420), (70, 3119494), (98, 2228210), (140, 1559747), (163, 1339660), (196, 1114105), (245, 891284), (326, 669830), (490, 445642), (652, 334915), (815, 267932), (980, 222821), (1141, 191380), (1367, 159740), (1630, 133966), (2282, 95690), (2734, 79870), (3260, 66983), (4564, 47845), (5468, 39935), (5705, 38276), (6835, 31948), (7987, 27340), (9569, 22820), (11410, 19138), (13670, 15974)]