221375960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{443}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 555523920

約数和(自身を除く): 334147960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 443, 520, 620, 806, 886, 961, 1240, 1612, 1772, 1922, 2015, 2215, 3224, 3544, 3844, 4030, 4430, 4805, 5759, 7688, 8060, 8860, 9610, 11518, 12493, 13733, 16120, 17720, 19220, 23036, 24986, 27466, 28795, 38440, 46072, 49972, 54932, 57590, 62465, 68665, 99944, 109864, 115180, 124930, 137330, 178529, 230360, 249860, 274660, 357058, 425723, 499720, 549320, 714116, 851446, 892645, 1428232, 1702892, 1785290, 2128615, 3405784, 3570580, 4257230, 5534399, 7141160, 8514460, 11068798, 17028920, 22137596, 27671995, 44275192, 55343990, 110687980, 221375960]

約数ペア:

[(1, 221375960), (2, 110687980), (4, 55343990), (5, 44275192), (8, 27671995), (10, 22137596), (13, 17028920), (20, 11068798), (26, 8514460), (31, 7141160), (40, 5534399), (52, 4257230), (62, 3570580), (65, 3405784), (104, 2128615), (124, 1785290), (130, 1702892), (155, 1428232), (248, 892645), (260, 851446), (310, 714116), (403, 549320), (443, 499720), (520, 425723), (620, 357058), (806, 274660), (886, 249860), (961, 230360), (1240, 178529), (1612, 137330), (1772, 124930), (1922, 115180), (2015, 109864), (2215, 99944), (3224, 68665), (3544, 62465), (3844, 57590), (4030, 54932), (4430, 49972), (4805, 46072), (5759, 38440), (7688, 28795), (8060, 27466), (8860, 24986), (9610, 23036), (11518, 19220), (12493, 17720), (13733, 16120)]