207927580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:995

約数の個数: 72

約数和(自身を含む): 510266736

約数和(自身を除く): 302339156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 331, 490, 641, 662, 980, 1282, 1324, 1655, 2317, 2564, 3205, 3310, 4487, 4634, 6410, 6620, 8974, 9268, 11585, 12820, 16219, 17948, 22435, 23170, 31409, 32438, 44870, 46340, 62818, 64876, 81095, 89740, 125636, 157045, 162190, 212171, 314090, 324380, 424342, 628180, 848684, 1060855, 1485197, 2121710, 2970394, 4243420, 5940788, 7425985, 10396379, 14851970, 20792758, 29703940, 41585516, 51981895, 103963790, 207927580]

約数ペア:

[(1, 207927580), (2, 103963790), (4, 51981895), (5, 41585516), (7, 29703940), (10, 20792758), (14, 14851970), (20, 10396379), (28, 7425985), (35, 5940788), (49, 4243420), (70, 2970394), (98, 2121710), (140, 1485197), (196, 1060855), (245, 848684), (331, 628180), (490, 424342), (641, 324380), (662, 314090), (980, 212171), (1282, 162190), (1324, 157045), (1655, 125636), (2317, 89740), (2564, 81095), (3205, 64876), (3310, 62818), (4487, 46340), (4634, 44870), (6410, 32438), (6620, 31409), (8974, 23170), (9268, 22435), (11585, 17948), (12820, 16219)]