18001240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12163}}^1$

素因数の和:12211

約数の個数: 32

約数和(自身を含む): 41600880

約数和(自身を除く): 23599640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12163, 24326, 48652, 60815, 97304, 121630, 243260, 450031, 486520, 900062, 1800124, 2250155, 3600248, 4500310, 9000620, 18001240]

約数ペア:

[(1, 18001240), (2, 9000620), (4, 4500310), (5, 3600248), (8, 2250155), (10, 1800124), (20, 900062), (37, 486520), (40, 450031), (74, 243260), (148, 121630), (185, 97304), (296, 60815), (370, 48652), (740, 24326), (1480, 12163)]