31516260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 91660800

約数和(自身を除く): 60144540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 79, 109, 122, 158, 183, 218, 237, 244, 305, 316, 327, 366, 395, 436, 474, 545, 610, 654, 732, 790, 915, 948, 1090, 1185, 1220, 1308, 1580, 1635, 1830, 2180, 2370, 3270, 3660, 4740, 4819, 6540, 6649, 8611, 9638, 13298, 14457, 17222, 19276, 19947, 24095, 25833, 26596, 28914, 33245, 34444, 39894, 43055, 48190, 51666, 57828, 66490, 72285, 79788, 86110, 96380, 99735, 103332, 129165, 132980, 144570, 172220, 199470, 258330, 289140, 398940, 516660, 525271, 1050542, 1575813, 2101084, 2626355, 3151626, 5252710, 6303252, 7879065, 10505420, 15758130, 31516260]

約数ペア:

[(1, 31516260), (2, 15758130), (3, 10505420), (4, 7879065), (5, 6303252), (6, 5252710), (10, 3151626), (12, 2626355), (15, 2101084), (20, 1575813), (30, 1050542), (60, 525271), (61, 516660), (79, 398940), (109, 289140), (122, 258330), (158, 199470), (183, 172220), (218, 144570), (237, 132980), (244, 129165), (305, 103332), (316, 99735), (327, 96380), (366, 86110), (395, 79788), (436, 72285), (474, 66490), (545, 57828), (610, 51666), (654, 48190), (732, 43055), (790, 39894), (915, 34444), (948, 33245), (1090, 28914), (1185, 26596), (1220, 25833), (1308, 24095), (1580, 19947), (1635, 19276), (1830, 17222), (2180, 14457), (2370, 13298), (3270, 9638), (3660, 8611), (4740, 6649), (4819, 6540)]