221253640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{983}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 529234560

約数和(自身を除く): 307980920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 331, 340, 662, 680, 983, 1324, 1655, 1966, 2648, 3310, 3932, 4915, 5627, 6620, 7864, 9830, 11254, 13240, 16711, 19660, 22508, 28135, 33422, 39320, 45016, 56270, 66844, 83555, 112540, 133688, 167110, 225080, 325373, 334220, 650746, 668440, 1301492, 1626865, 2602984, 3253730, 5531341, 6507460, 11062682, 13014920, 22125364, 27656705, 44250728, 55313410, 110626820, 221253640]

約数ペア:

[(1, 221253640), (2, 110626820), (4, 55313410), (5, 44250728), (8, 27656705), (10, 22125364), (17, 13014920), (20, 11062682), (34, 6507460), (40, 5531341), (68, 3253730), (85, 2602984), (136, 1626865), (170, 1301492), (331, 668440), (340, 650746), (662, 334220), (680, 325373), (983, 225080), (1324, 167110), (1655, 133688), (1966, 112540), (2648, 83555), (3310, 66844), (3932, 56270), (4915, 45016), (5627, 39320), (6620, 33422), (7864, 28135), (9830, 22508), (11254, 19660), (13240, 16711)]