51505020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1060

約数の個数: 144

約数和(自身を含む): 183089088

約数和(自身を除く): 131584068

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 369, 410, 420, 492, 574, 615, 630, 738, 820, 861, 997, 1148, 1230, 1260, 1435, 1476, 1722, 1845, 1994, 2460, 2583, 2870, 2991, 3444, 3690, 3988, 4305, 4985, 5166, 5740, 5982, 6979, 7380, 8610, 8973, 9970, 10332, 11964, 12915, 13958, 14955, 17220, 17946, 19940, 20937, 25830, 27916, 29910, 34895, 35892, 40877, 41874, 44865, 51660, 59820, 62811, 69790, 81754, 83748, 89730, 104685, 122631, 125622, 139580, 163508, 179460, 204385, 209370, 245262, 251244, 286139, 314055, 367893, 408770, 418740, 490524, 572278, 613155, 628110, 735786, 817540, 858417, 1144556, 1226310, 1256220, 1430695, 1471572, 1716834, 1839465, 2452620, 2575251, 2861390, 3433668, 3678930, 4292085, 5150502, 5722780, 7357860, 8584170, 10301004, 12876255, 17168340, 25752510, 51505020]

約数ペア:

[(1, 51505020), (2, 25752510), (3, 17168340), (4, 12876255), (5, 10301004), (6, 8584170), (7, 7357860), (9, 5722780), (10, 5150502), (12, 4292085), (14, 3678930), (15, 3433668), (18, 2861390), (20, 2575251), (21, 2452620), (28, 1839465), (30, 1716834), (35, 1471572), (36, 1430695), (41, 1256220), (42, 1226310), (45, 1144556), (60, 858417), (63, 817540), (70, 735786), (82, 628110), (84, 613155), (90, 572278), (105, 490524), (123, 418740), (126, 408770), (140, 367893), (164, 314055), (180, 286139), (205, 251244), (210, 245262), (246, 209370), (252, 204385), (287, 179460), (315, 163508), (369, 139580), (410, 125622), (420, 122631), (492, 104685), (574, 89730), (615, 83748), (630, 81754), (738, 69790), (820, 62811), (861, 59820), (997, 51660), (1148, 44865), (1230, 41874), (1260, 40877), (1435, 35892), (1476, 34895), (1722, 29910), (1845, 27916), (1994, 25830), (2460, 20937), (2583, 19940), (2870, 17946), (2991, 17220), (3444, 14955), (3690, 13958), (3988, 12915), (4305, 11964), (4985, 10332), (5166, 9970), (5740, 8973), (5982, 8610), (6979, 7380)]