724137980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{16229}}^1$

素因数の和:16358

約数の個数: 48

約数和(自身を含む): 1603264320

約数和(自身を除く): 879126340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 388, 460, 485, 970, 1940, 2231, 4462, 8924, 11155, 16229, 22310, 32458, 44620, 64916, 81145, 162290, 324580, 373267, 746534, 1493068, 1574213, 1866335, 3148426, 3732670, 6296852, 7465340, 7871065, 15742130, 31484260, 36206899, 72413798, 144827596, 181034495, 362068990, 724137980]

約数ペア:

[(1, 724137980), (2, 362068990), (4, 181034495), (5, 144827596), (10, 72413798), (20, 36206899), (23, 31484260), (46, 15742130), (92, 7871065), (97, 7465340), (115, 6296852), (194, 3732670), (230, 3148426), (388, 1866335), (460, 1574213), (485, 1493068), (970, 746534), (1940, 373267), (2231, 324580), (4462, 162290), (8924, 81145), (11155, 64916), (16229, 44620), (22310, 32458)]