259429040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{691}}^1$

素因数の和:755

約数の個数: 120

約数和(自身を含む): 686549808

約数和(自身を除く): 427120768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 361, 380, 494, 520, 691, 722, 760, 988, 1040, 1235, 1382, 1444, 1520, 1805, 1976, 2470, 2764, 2888, 3455, 3610, 3952, 4693, 4940, 5528, 5776, 6910, 7220, 8983, 9386, 9880, 11056, 13129, 13820, 14440, 17966, 18772, 19760, 23465, 26258, 27640, 28880, 35932, 37544, 44915, 46930, 52516, 55280, 65645, 71864, 75088, 89830, 93860, 105032, 131290, 143728, 170677, 179660, 187720, 210064, 249451, 262580, 341354, 359320, 375440, 498902, 525160, 682708, 718640, 853385, 997804, 1050320, 1247255, 1365416, 1706770, 1995608, 2494510, 2730832, 3242863, 3413540, 3991216, 4989020, 6485726, 6827080, 9978040, 12971452, 13654160, 16214315, 19956080, 25942904, 32428630, 51885808, 64857260, 129714520, 259429040]

約数ペア:

[(1, 259429040), (2, 129714520), (4, 64857260), (5, 51885808), (8, 32428630), (10, 25942904), (13, 19956080), (16, 16214315), (19, 13654160), (20, 12971452), (26, 9978040), (38, 6827080), (40, 6485726), (52, 4989020), (65, 3991216), (76, 3413540), (80, 3242863), (95, 2730832), (104, 2494510), (130, 1995608), (152, 1706770), (190, 1365416), (208, 1247255), (247, 1050320), (260, 997804), (304, 853385), (361, 718640), (380, 682708), (494, 525160), (520, 498902), (691, 375440), (722, 359320), (760, 341354), (988, 262580), (1040, 249451), (1235, 210064), (1382, 187720), (1444, 179660), (1520, 170677), (1805, 143728), (1976, 131290), (2470, 105032), (2764, 93860), (2888, 89830), (3455, 75088), (3610, 71864), (3952, 65645), (4693, 55280), (4940, 52516), (5528, 46930), (5776, 44915), (6910, 37544), (7220, 35932), (8983, 28880), (9386, 27640), (9880, 26258), (11056, 23465), (13129, 19760), (13820, 18772), (14440, 17966)]