28371127180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{357229}}^1$

素因数の和:357287

約数の個数: 72

約数和(自身を含む): 68596733520

約数和(自身を除く): 40225606340

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 361, 380, 418, 722, 836, 1045, 1444, 1805, 2090, 3610, 3971, 4180, 7220, 7942, 15884, 19855, 39710, 79420, 357229, 714458, 1428916, 1786145, 3572290, 3929519, 6787351, 7144580, 7859038, 13574702, 15718076, 19647595, 27149404, 33936755, 39295190, 67873510, 74660861, 78590380, 128959669, 135747020, 149321722, 257919338, 298643444, 373304305, 515838676, 644798345, 746608610, 1289596690, 1418556359, 1493217220, 2579193380, 2837112718, 5674225436, 7092781795, 14185563590, 28371127180]

約数ペア:

[(1, 28371127180), (2, 14185563590), (4, 7092781795), (5, 5674225436), (10, 2837112718), (11, 2579193380), (19, 1493217220), (20, 1418556359), (22, 1289596690), (38, 746608610), (44, 644798345), (55, 515838676), (76, 373304305), (95, 298643444), (110, 257919338), (190, 149321722), (209, 135747020), (220, 128959669), (361, 78590380), (380, 74660861), (418, 67873510), (722, 39295190), (836, 33936755), (1045, 27149404), (1444, 19647595), (1805, 15718076), (2090, 13574702), (3610, 7859038), (3971, 7144580), (4180, 6787351), (7220, 3929519), (7942, 3572290), (15884, 1786145), (19855, 1428916), (39710, 714458), (79420, 357229)]