978280816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 2037568000

約数和(自身を除く): 1059287184

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 157, 199, 206, 304, 314, 398, 412, 628, 796, 824, 1256, 1592, 1648, 1957, 2512, 2983, 3184, 3781, 3914, 5966, 7562, 7828, 11932, 15124, 15656, 16171, 20497, 23864, 30248, 31243, 31312, 32342, 40994, 47728, 60496, 62486, 64684, 81988, 124972, 129368, 163976, 249944, 258736, 307249, 327952, 389443, 499888, 593617, 614498, 778886, 1187234, 1228996, 1557772, 2374468, 2457992, 3115544, 3218029, 4748936, 4915984, 6231088, 6436058, 9497872, 12872116, 25744232, 51488464, 61142551, 122285102, 244570204, 489140408, 978280816]

約数ペア:

[(1, 978280816), (2, 489140408), (4, 244570204), (8, 122285102), (16, 61142551), (19, 51488464), (38, 25744232), (76, 12872116), (103, 9497872), (152, 6436058), (157, 6231088), (199, 4915984), (206, 4748936), (304, 3218029), (314, 3115544), (398, 2457992), (412, 2374468), (628, 1557772), (796, 1228996), (824, 1187234), (1256, 778886), (1592, 614498), (1648, 593617), (1957, 499888), (2512, 389443), (2983, 327952), (3184, 307249), (3781, 258736), (3914, 249944), (5966, 163976), (7562, 129368), (7828, 124972), (11932, 81988), (15124, 64684), (15656, 62486), (16171, 60496), (20497, 47728), (23864, 40994), (30248, 32342), (31243, 31312)]