128215412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 249067392

約数和(自身を除く): 120851980

約数列:

[1, 2, 4, 13, 26, 52, 61, 83, 122, 166, 244, 332, 487, 793, 974, 1079, 1586, 1948, 2158, 3172, 4316, 5063, 6331, 10126, 12662, 20252, 25324, 29707, 40421, 59414, 65819, 80842, 118828, 131638, 161684, 263276, 386191, 525473, 772382, 1050946, 1544764, 2101892, 2465681, 4931362, 9862724, 32053853, 64107706, 128215412]

約数ペア:

[(1, 128215412), (2, 64107706), (4, 32053853), (13, 9862724), (26, 4931362), (52, 2465681), (61, 2101892), (83, 1544764), (122, 1050946), (166, 772382), (244, 525473), (332, 386191), (487, 263276), (793, 161684), (974, 131638), (1079, 118828), (1586, 80842), (1948, 65819), (2158, 59414), (3172, 40421), (4316, 29707), (5063, 25324), (6331, 20252), (10126, 12662)]