1388400224

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{3877}}^1$

素因数の和:3956

約数の個数: 72

約数和(自身を含む): 2978676288

約数和(自身を除く): 1590276064

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 361, 496, 589, 608, 722, 992, 1178, 1444, 2356, 2888, 3877, 4712, 5776, 7754, 9424, 11191, 11552, 15508, 18848, 22382, 31016, 44764, 62032, 73663, 89528, 120187, 124064, 147326, 179056, 240374, 294652, 358112, 480748, 589304, 961496, 1178608, 1399597, 1922992, 2283553, 2357216, 2799194, 3845984, 4567106, 5598388, 9134212, 11196776, 18268424, 22393552, 36536848, 43387507, 44787104, 73073696, 86775014, 173550028, 347100056, 694200112, 1388400224]

約数ペア:

[(1, 1388400224), (2, 694200112), (4, 347100056), (8, 173550028), (16, 86775014), (19, 73073696), (31, 44787104), (32, 43387507), (38, 36536848), (62, 22393552), (76, 18268424), (124, 11196776), (152, 9134212), (248, 5598388), (304, 4567106), (361, 3845984), (496, 2799194), (589, 2357216), (608, 2283553), (722, 1922992), (992, 1399597), (1178, 1178608), (1444, 961496), (2356, 589304), (2888, 480748), (3877, 358112), (4712, 294652), (5776, 240374), (7754, 179056), (9424, 147326), (11191, 124064), (11552, 120187), (15508, 89528), (18848, 73663), (22382, 62032), (31016, 44764)]