15990780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 51649920

約数和(自身を除く): 35659140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 83, 95, 114, 130, 156, 166, 169, 190, 195, 228, 247, 249, 260, 285, 332, 338, 380, 390, 415, 494, 498, 507, 570, 676, 741, 780, 830, 845, 988, 996, 1014, 1079, 1140, 1235, 1245, 1482, 1577, 1660, 1690, 2028, 2158, 2470, 2490, 2535, 2964, 3154, 3211, 3237, 3380, 3705, 4316, 4731, 4940, 4980, 5070, 5395, 6308, 6422, 6474, 7410, 7885, 9462, 9633, 10140, 10790, 12844, 12948, 14027, 14820, 15770, 16055, 16185, 18924, 19266, 20501, 21580, 23655, 28054, 31540, 32110, 32370, 38532, 41002, 42081, 47310, 48165, 56108, 61503, 64220, 64740, 70135, 82004, 84162, 94620, 96330, 102505, 123006, 140270, 168324, 192660, 205010, 210405, 246012, 266513, 280540, 307515, 410020, 420810, 533026, 615030, 799539, 841620, 1066052, 1230060, 1332565, 1599078, 2665130, 3198156, 3997695, 5330260, 7995390, 15990780]

約数ペア:

[(1, 15990780), (2, 7995390), (3, 5330260), (4, 3997695), (5, 3198156), (6, 2665130), (10, 1599078), (12, 1332565), (13, 1230060), (15, 1066052), (19, 841620), (20, 799539), (26, 615030), (30, 533026), (38, 420810), (39, 410020), (52, 307515), (57, 280540), (60, 266513), (65, 246012), (76, 210405), (78, 205010), (83, 192660), (95, 168324), (114, 140270), (130, 123006), (156, 102505), (166, 96330), (169, 94620), (190, 84162), (195, 82004), (228, 70135), (247, 64740), (249, 64220), (260, 61503), (285, 56108), (332, 48165), (338, 47310), (380, 42081), (390, 41002), (415, 38532), (494, 32370), (498, 32110), (507, 31540), (570, 28054), (676, 23655), (741, 21580), (780, 20501), (830, 19266), (845, 18924), (988, 16185), (996, 16055), (1014, 15770), (1079, 14820), (1140, 14027), (1235, 12948), (1245, 12844), (1482, 10790), (1577, 10140), (1660, 9633), (1690, 9462), (2028, 7885), (2158, 7410), (2470, 6474), (2490, 6422), (2535, 6308), (2964, 5395), (3154, 5070), (3211, 4980), (3237, 4940), (3380, 4731), (3705, 4316)]