681871560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:627

約数の個数: 128

約数和(自身を含む): 2086318080

約数和(自身を除く): 1404446520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 223, 249, 307, 332, 415, 446, 498, 614, 664, 669, 830, 892, 921, 996, 1115, 1228, 1245, 1338, 1535, 1660, 1784, 1842, 1992, 2230, 2456, 2490, 2676, 3070, 3320, 3345, 3684, 4460, 4605, 4980, 5352, 6140, 6690, 7368, 8920, 9210, 9960, 12280, 13380, 18420, 18509, 25481, 26760, 36840, 37018, 50962, 55527, 68461, 74036, 76443, 92545, 101924, 111054, 127405, 136922, 148072, 152886, 185090, 203848, 205383, 222108, 254810, 273844, 277635, 305772, 342305, 370180, 382215, 410766, 444216, 509620, 547688, 555270, 611544, 684610, 740360, 764430, 821532, 1019240, 1026915, 1110540, 1369220, 1528860, 1643064, 2053830, 2221080, 2738440, 3057720, 4107660, 5682263, 8215320, 11364526, 17046789, 22729052, 28411315, 34093578, 45458104, 56822630, 68187156, 85233945, 113645260, 136374312, 170467890, 227290520, 340935780, 681871560]

約数ペア:

[(1, 681871560), (2, 340935780), (3, 227290520), (4, 170467890), (5, 136374312), (6, 113645260), (8, 85233945), (10, 68187156), (12, 56822630), (15, 45458104), (20, 34093578), (24, 28411315), (30, 22729052), (40, 17046789), (60, 11364526), (83, 8215320), (120, 5682263), (166, 4107660), (223, 3057720), (249, 2738440), (307, 2221080), (332, 2053830), (415, 1643064), (446, 1528860), (498, 1369220), (614, 1110540), (664, 1026915), (669, 1019240), (830, 821532), (892, 764430), (921, 740360), (996, 684610), (1115, 611544), (1228, 555270), (1245, 547688), (1338, 509620), (1535, 444216), (1660, 410766), (1784, 382215), (1842, 370180), (1992, 342305), (2230, 305772), (2456, 277635), (2490, 273844), (2676, 254810), (3070, 222108), (3320, 205383), (3345, 203848), (3684, 185090), (4460, 152886), (4605, 148072), (4980, 136922), (5352, 127405), (6140, 111054), (6690, 101924), (7368, 92545), (8920, 76443), (9210, 74036), (9960, 68461), (12280, 55527), (13380, 50962), (18420, 37018), (18509, 36840), (25481, 26760)]