18645780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{227}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 53893728

約数和(自身を除く): 35247948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 227, 370, 444, 454, 555, 681, 740, 908, 1110, 1135, 1362, 1369, 2220, 2270, 2724, 2738, 3405, 4107, 4540, 5476, 6810, 6845, 8214, 8399, 13620, 13690, 16428, 16798, 20535, 25197, 27380, 33596, 41070, 41995, 50394, 82140, 83990, 100788, 125985, 167980, 251970, 310763, 503940, 621526, 932289, 1243052, 1553815, 1864578, 3107630, 3729156, 4661445, 6215260, 9322890, 18645780]

約数ペア:

[(1, 18645780), (2, 9322890), (3, 6215260), (4, 4661445), (5, 3729156), (6, 3107630), (10, 1864578), (12, 1553815), (15, 1243052), (20, 932289), (30, 621526), (37, 503940), (60, 310763), (74, 251970), (111, 167980), (148, 125985), (185, 100788), (222, 83990), (227, 82140), (370, 50394), (444, 41995), (454, 41070), (555, 33596), (681, 27380), (740, 25197), (908, 20535), (1110, 16798), (1135, 16428), (1362, 13690), (1369, 13620), (2220, 8399), (2270, 8214), (2724, 6845), (2738, 6810), (3405, 5476), (4107, 4540)]