123789440

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1523}}^1$

素因数の和:1669

約数の個数: 64

約数和(自身を含む): 298460160

約数和(自身を除く): 174670720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 1523, 2032, 2540, 3046, 4064, 5080, 6092, 7615, 8128, 10160, 12184, 15230, 16256, 20320, 24368, 30460, 40640, 48736, 60920, 81280, 97472, 121840, 193421, 194944, 243680, 386842, 487360, 773684, 967105, 974720, 1547368, 1934210, 3094736, 3868420, 6189472, 7736840, 12378944, 15473680, 24757888, 30947360, 61894720, 123789440]

約数ペア:

[(1, 123789440), (2, 61894720), (4, 30947360), (5, 24757888), (8, 15473680), (10, 12378944), (16, 7736840), (20, 6189472), (32, 3868420), (40, 3094736), (64, 1934210), (80, 1547368), (127, 974720), (128, 967105), (160, 773684), (254, 487360), (320, 386842), (508, 243680), (635, 194944), (640, 193421), (1016, 121840), (1270, 97472), (1523, 81280), (2032, 60920), (2540, 48736), (3046, 40640), (4064, 30460), (5080, 24368), (6092, 20320), (7615, 16256), (8128, 15230), (10160, 12184)]