2027778820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:653

約数の個数: 96

約数和(自身を含む): 4535258112

約数和(自身を除く): 2507479292

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 241, 310, 331, 410, 482, 620, 662, 820, 964, 1205, 1271, 1324, 1655, 2410, 2542, 3310, 4820, 5084, 6355, 6620, 7471, 9881, 10261, 12710, 13571, 14942, 19762, 20522, 25420, 27142, 29884, 37355, 39524, 41044, 49405, 51305, 54284, 67855, 74710, 79771, 98810, 102610, 135710, 149420, 159542, 197620, 205220, 271420, 306311, 319084, 398855, 420701, 612622, 797710, 841402, 1225244, 1531555, 1595420, 1682804, 2103505, 2472901, 3063110, 3270611, 4207010, 4945802, 6126220, 6541222, 8414020, 9891604, 12364505, 13082444, 16353055, 24729010, 32706110, 49458020, 65412220, 101388941, 202777882, 405555764, 506944705, 1013889410, 2027778820]

約数ペア:

[(1, 2027778820), (2, 1013889410), (4, 506944705), (5, 405555764), (10, 202777882), (20, 101388941), (31, 65412220), (41, 49458020), (62, 32706110), (82, 24729010), (124, 16353055), (155, 13082444), (164, 12364505), (205, 9891604), (241, 8414020), (310, 6541222), (331, 6126220), (410, 4945802), (482, 4207010), (620, 3270611), (662, 3063110), (820, 2472901), (964, 2103505), (1205, 1682804), (1271, 1595420), (1324, 1531555), (1655, 1225244), (2410, 841402), (2542, 797710), (3310, 612622), (4820, 420701), (5084, 398855), (6355, 319084), (6620, 306311), (7471, 271420), (9881, 205220), (10261, 197620), (12710, 159542), (13571, 149420), (14942, 135710), (19762, 102610), (20522, 98810), (25420, 79771), (27142, 74710), (29884, 67855), (37355, 54284), (39524, 51305), (41044, 49405)]