90648520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2663}}^1$

素因数の和:2734

約数の個数: 64

約数和(自身を含む): 218661120

約数和(自身を除く): 128012600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 740, 851, 920, 1480, 1702, 2663, 3404, 4255, 5326, 6808, 8510, 10652, 13315, 17020, 21304, 26630, 34040, 53260, 61249, 98531, 106520, 122498, 197062, 244996, 306245, 394124, 489992, 492655, 612490, 788248, 985310, 1224980, 1970620, 2266213, 2449960, 3941240, 4532426, 9064852, 11331065, 18129704, 22662130, 45324260, 90648520]

約数ペア:

[(1, 90648520), (2, 45324260), (4, 22662130), (5, 18129704), (8, 11331065), (10, 9064852), (20, 4532426), (23, 3941240), (37, 2449960), (40, 2266213), (46, 1970620), (74, 1224980), (92, 985310), (115, 788248), (148, 612490), (184, 492655), (185, 489992), (230, 394124), (296, 306245), (370, 244996), (460, 197062), (740, 122498), (851, 106520), (920, 98531), (1480, 61249), (1702, 53260), (2663, 34040), (3404, 26630), (4255, 21304), (5326, 17020), (6808, 13315), (8510, 10652)]