81276780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1319}}^1$

素因数の和:1423

約数の個数: 96

約数和(自身を含む): 248371200

約数和(自身を除く): 167094420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 195, 237, 260, 316, 390, 395, 474, 780, 790, 948, 1027, 1185, 1319, 1580, 2054, 2370, 2638, 3081, 3957, 4108, 4740, 5135, 5276, 6162, 6595, 7914, 10270, 12324, 13190, 15405, 15828, 17147, 19785, 20540, 26380, 30810, 34294, 39570, 51441, 61620, 68588, 79140, 85735, 102882, 104201, 171470, 205764, 208402, 257205, 312603, 342940, 416804, 514410, 521005, 625206, 1028820, 1042010, 1250412, 1354613, 1563015, 2084020, 2709226, 3126030, 4063839, 5418452, 6252060, 6773065, 8127678, 13546130, 16255356, 20319195, 27092260, 40638390, 81276780]

約数ペア:

[(1, 81276780), (2, 40638390), (3, 27092260), (4, 20319195), (5, 16255356), (6, 13546130), (10, 8127678), (12, 6773065), (13, 6252060), (15, 5418452), (20, 4063839), (26, 3126030), (30, 2709226), (39, 2084020), (52, 1563015), (60, 1354613), (65, 1250412), (78, 1042010), (79, 1028820), (130, 625206), (156, 521005), (158, 514410), (195, 416804), (237, 342940), (260, 312603), (316, 257205), (390, 208402), (395, 205764), (474, 171470), (780, 104201), (790, 102882), (948, 85735), (1027, 79140), (1185, 68588), (1319, 61620), (1580, 51441), (2054, 39570), (2370, 34294), (2638, 30810), (3081, 26380), (3957, 20540), (4108, 19785), (4740, 17147), (5135, 15828), (5276, 15405), (6162, 13190), (6595, 12324), (7914, 10270)]