496740140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{379}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 1142448720

約数和(自身を除く): 645708580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 379, 710, 758, 923, 1420, 1516, 1846, 1895, 3692, 3790, 4615, 4927, 5041, 7580, 9230, 9854, 10082, 18460, 19708, 20164, 24635, 25205, 26909, 49270, 50410, 53818, 65533, 98540, 100820, 107636, 131066, 134545, 262132, 269090, 327665, 349817, 538180, 655330, 699634, 1310660, 1399268, 1749085, 1910539, 3498170, 3821078, 6996340, 7642156, 9552695, 19105390, 24837007, 38210780, 49674014, 99348028, 124185035, 248370070, 496740140]

約数ペア:

[(1, 496740140), (2, 248370070), (4, 124185035), (5, 99348028), (10, 49674014), (13, 38210780), (20, 24837007), (26, 19105390), (52, 9552695), (65, 7642156), (71, 6996340), (130, 3821078), (142, 3498170), (260, 1910539), (284, 1749085), (355, 1399268), (379, 1310660), (710, 699634), (758, 655330), (923, 538180), (1420, 349817), (1516, 327665), (1846, 269090), (1895, 262132), (3692, 134545), (3790, 131066), (4615, 107636), (4927, 100820), (5041, 98540), (7580, 65533), (9230, 53818), (9854, 50410), (10082, 49270), (18460, 26909), (19708, 25205), (20164, 24635)]