66703940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{397}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 145496064

約数和(自身を除く): 78792124

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 271, 310, 397, 542, 620, 794, 1084, 1355, 1588, 1985, 2710, 3970, 5420, 7940, 8401, 12307, 16802, 24614, 33604, 42005, 49228, 61535, 84010, 107587, 123070, 168020, 215174, 246140, 430348, 537935, 1075870, 2151740, 3335197, 6670394, 13340788, 16675985, 33351970, 66703940]

約数ペア:

[(1, 66703940), (2, 33351970), (4, 16675985), (5, 13340788), (10, 6670394), (20, 3335197), (31, 2151740), (62, 1075870), (124, 537935), (155, 430348), (271, 246140), (310, 215174), (397, 168020), (542, 123070), (620, 107587), (794, 84010), (1084, 61535), (1355, 49228), (1588, 42005), (1985, 33604), (2710, 24614), (3970, 16802), (5420, 12307), (7940, 8401)]