8643700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 20719160

約数和(自身を除く): 12075460

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 109, 122, 130, 218, 244, 260, 305, 325, 436, 545, 610, 650, 793, 1090, 1220, 1300, 1417, 1525, 1586, 2180, 2725, 2834, 3050, 3172, 3965, 5450, 5668, 6100, 6649, 7085, 7930, 10900, 13298, 14170, 15860, 19825, 26596, 28340, 33245, 35425, 39650, 66490, 70850, 79300, 86437, 132980, 141700, 166225, 172874, 332450, 345748, 432185, 664900, 864370, 1728740, 2160925, 4321850, 8643700]

約数ペア:

[(1, 8643700), (2, 4321850), (4, 2160925), (5, 1728740), (10, 864370), (13, 664900), (20, 432185), (25, 345748), (26, 332450), (50, 172874), (52, 166225), (61, 141700), (65, 132980), (100, 86437), (109, 79300), (122, 70850), (130, 66490), (218, 39650), (244, 35425), (260, 33245), (305, 28340), (325, 26596), (436, 19825), (545, 15860), (610, 14170), (650, 13298), (793, 10900), (1090, 7930), (1220, 7085), (1300, 6649), (1417, 6100), (1525, 5668), (1586, 5450), (2180, 3965), (2725, 3172), (2834, 3050)]