8353540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 20162520

約数和(自身を除く): 11808980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 89, 95, 130, 178, 190, 247, 260, 356, 361, 380, 445, 494, 722, 890, 988, 1157, 1235, 1444, 1691, 1780, 1805, 2314, 2470, 3382, 3610, 4628, 4693, 4940, 5785, 6764, 7220, 8455, 9386, 11570, 16910, 18772, 21983, 23140, 23465, 32129, 33820, 43966, 46930, 64258, 87932, 93860, 109915, 128516, 160645, 219830, 321290, 417677, 439660, 642580, 835354, 1670708, 2088385, 4176770, 8353540]

約数ペア:

[(1, 8353540), (2, 4176770), (4, 2088385), (5, 1670708), (10, 835354), (13, 642580), (19, 439660), (20, 417677), (26, 321290), (38, 219830), (52, 160645), (65, 128516), (76, 109915), (89, 93860), (95, 87932), (130, 64258), (178, 46930), (190, 43966), (247, 33820), (260, 32129), (356, 23465), (361, 23140), (380, 21983), (445, 18772), (494, 16910), (722, 11570), (890, 9386), (988, 8455), (1157, 7220), (1235, 6764), (1444, 5785), (1691, 4940), (1780, 4693), (1805, 4628), (2314, 3610), (2470, 3382)]