281881392

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 160

約数和(自身を含む): 835154880

約数和(自身を除く): 553273488

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 37, 39, 48, 52, 58, 74, 78, 87, 104, 111, 116, 148, 156, 174, 208, 222, 232, 296, 312, 348, 377, 421, 444, 464, 481, 592, 624, 696, 754, 842, 888, 962, 1073, 1131, 1263, 1392, 1443, 1508, 1684, 1776, 1924, 2146, 2262, 2526, 2886, 3016, 3219, 3368, 3848, 4292, 4524, 5052, 5473, 5772, 6032, 6438, 6736, 7696, 8584, 9048, 10104, 10946, 11544, 12209, 12876, 13949, 15577, 16419, 17168, 18096, 20208, 21892, 23088, 24418, 25752, 27898, 31154, 32838, 36627, 41847, 43784, 46731, 48836, 51504, 55796, 62308, 65676, 73254, 83694, 87568, 93462, 97672, 111592, 124616, 131352, 146508, 158717, 167388, 186924, 195344, 202501, 223184, 249232, 262704, 293016, 317434, 334776, 373848, 405002, 451733, 476151, 586032, 607503, 634868, 669552, 747696, 810004, 903466, 952302, 1215006, 1269736, 1355199, 1620008, 1806932, 1904604, 2430012, 2539472, 2710398, 3240016, 3613864, 3809208, 4860024, 5420796, 5872529, 7227728, 7618416, 9720048, 10841592, 11745058, 17617587, 21683184, 23490116, 35235174, 46980232, 70470348, 93960464, 140940696, 281881392]

約数ペア:

[(1, 281881392), (2, 140940696), (3, 93960464), (4, 70470348), (6, 46980232), (8, 35235174), (12, 23490116), (13, 21683184), (16, 17617587), (24, 11745058), (26, 10841592), (29, 9720048), (37, 7618416), (39, 7227728), (48, 5872529), (52, 5420796), (58, 4860024), (74, 3809208), (78, 3613864), (87, 3240016), (104, 2710398), (111, 2539472), (116, 2430012), (148, 1904604), (156, 1806932), (174, 1620008), (208, 1355199), (222, 1269736), (232, 1215006), (296, 952302), (312, 903466), (348, 810004), (377, 747696), (421, 669552), (444, 634868), (464, 607503), (481, 586032), (592, 476151), (624, 451733), (696, 405002), (754, 373848), (842, 334776), (888, 317434), (962, 293016), (1073, 262704), (1131, 249232), (1263, 223184), (1392, 202501), (1443, 195344), (1508, 186924), (1684, 167388), (1776, 158717), (1924, 146508), (2146, 131352), (2262, 124616), (2526, 111592), (2886, 97672), (3016, 93462), (3219, 87568), (3368, 83694), (3848, 73254), (4292, 65676), (4524, 62308), (5052, 55796), (5473, 51504), (5772, 48836), (6032, 46731), (6438, 43784), (6736, 41847), (7696, 36627), (8584, 32838), (9048, 31154), (10104, 27898), (10946, 25752), (11544, 24418), (12209, 23088), (12876, 21892), (13949, 20208), (15577, 18096), (16419, 17168)]