320468440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5939}}^1$

素因数の和:6040

約数の個数: 64

約数和(自身を含む): 769824000

約数和(自身を除く): 449355560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 568, 710, 760, 1349, 1420, 2698, 2840, 5396, 5939, 6745, 10792, 11878, 13490, 23756, 26980, 29695, 47512, 53960, 59390, 112841, 118780, 225682, 237560, 421669, 451364, 564205, 843338, 902728, 1128410, 1686676, 2108345, 2256820, 3373352, 4216690, 4513640, 8011711, 8433380, 16023422, 16866760, 32046844, 40058555, 64093688, 80117110, 160234220, 320468440]

約数ペア:

[(1, 320468440), (2, 160234220), (4, 80117110), (5, 64093688), (8, 40058555), (10, 32046844), (19, 16866760), (20, 16023422), (38, 8433380), (40, 8011711), (71, 4513640), (76, 4216690), (95, 3373352), (142, 2256820), (152, 2108345), (190, 1686676), (284, 1128410), (355, 902728), (380, 843338), (568, 564205), (710, 451364), (760, 421669), (1349, 237560), (1420, 225682), (2698, 118780), (2840, 112841), (5396, 59390), (5939, 53960), (6745, 47512), (10792, 29695), (11878, 26980), (13490, 23756)]