1299702920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1\times {\mathrm{971}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 2963822400

約数和(自身を除く): 1664119480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 307, 436, 545, 614, 872, 971, 1090, 1228, 1535, 1942, 2180, 2456, 3070, 3884, 4360, 4855, 6140, 7768, 9710, 12280, 19420, 33463, 38840, 66926, 105839, 133852, 167315, 211678, 267704, 298097, 334630, 423356, 529195, 596194, 669260, 846712, 1058390, 1192388, 1338520, 1490485, 2116780, 2384776, 2980970, 4233560, 5961940, 11923880, 32492573, 64985146, 129970292, 162462865, 259940584, 324925730, 649851460, 1299702920]

約数ペア:

[(1, 1299702920), (2, 649851460), (4, 324925730), (5, 259940584), (8, 162462865), (10, 129970292), (20, 64985146), (40, 32492573), (109, 11923880), (218, 5961940), (307, 4233560), (436, 2980970), (545, 2384776), (614, 2116780), (872, 1490485), (971, 1338520), (1090, 1192388), (1228, 1058390), (1535, 846712), (1942, 669260), (2180, 596194), (2456, 529195), (3070, 423356), (3884, 334630), (4360, 298097), (4855, 267704), (6140, 211678), (7768, 167315), (9710, 133852), (12280, 105839), (19420, 66926), (33463, 38840)]