665601500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 1497612480

約数和(自身を除く): 832010980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 139, 157, 244, 250, 278, 305, 314, 500, 556, 610, 628, 695, 785, 1220, 1390, 1525, 1570, 2780, 3050, 3140, 3475, 3925, 6100, 6950, 7625, 7850, 8479, 9577, 13900, 15250, 15700, 16958, 17375, 19154, 19625, 21823, 30500, 33916, 34750, 38308, 39250, 42395, 43646, 47885, 69500, 78500, 84790, 87292, 95770, 109115, 169580, 191540, 211975, 218230, 239425, 423950, 436460, 478850, 545575, 847900, 957700, 1059875, 1091150, 1197125, 1331203, 2119750, 2182300, 2394250, 2662406, 2727875, 4239500, 4788500, 5324812, 5455750, 6656015, 10911500, 13312030, 26624060, 33280075, 66560150, 133120300, 166400375, 332800750, 665601500]

約数ペア:

[(1, 665601500), (2, 332800750), (4, 166400375), (5, 133120300), (10, 66560150), (20, 33280075), (25, 26624060), (50, 13312030), (61, 10911500), (100, 6656015), (122, 5455750), (125, 5324812), (139, 4788500), (157, 4239500), (244, 2727875), (250, 2662406), (278, 2394250), (305, 2182300), (314, 2119750), (500, 1331203), (556, 1197125), (610, 1091150), (628, 1059875), (695, 957700), (785, 847900), (1220, 545575), (1390, 478850), (1525, 436460), (1570, 423950), (2780, 239425), (3050, 218230), (3140, 211975), (3475, 191540), (3925, 169580), (6100, 109115), (6950, 95770), (7625, 87292), (7850, 84790), (8479, 78500), (9577, 69500), (13900, 47885), (15250, 43646), (15700, 42395), (16958, 39250), (17375, 38308), (19154, 34750), (19625, 33916), (21823, 30500)]