31749520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 81512640

約数和(自身を除く): 49763120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 331, 436, 440, 545, 662, 872, 880, 1090, 1199, 1324, 1655, 1744, 2180, 2398, 2648, 3310, 3641, 4360, 4796, 5296, 5995, 6620, 7282, 8720, 9592, 11990, 13240, 14564, 18205, 19184, 23980, 26480, 29128, 36079, 36410, 47960, 58256, 72158, 72820, 95920, 144316, 145640, 180395, 288632, 291280, 360790, 396869, 577264, 721580, 793738, 1443160, 1587476, 1984345, 2886320, 3174952, 3968690, 6349904, 7937380, 15874760, 31749520]

約数ペア:

[(1, 31749520), (2, 15874760), (4, 7937380), (5, 6349904), (8, 3968690), (10, 3174952), (11, 2886320), (16, 1984345), (20, 1587476), (22, 1443160), (40, 793738), (44, 721580), (55, 577264), (80, 396869), (88, 360790), (109, 291280), (110, 288632), (176, 180395), (218, 145640), (220, 144316), (331, 95920), (436, 72820), (440, 72158), (545, 58256), (662, 47960), (872, 36410), (880, 36079), (1090, 29128), (1199, 26480), (1324, 23980), (1655, 19184), (1744, 18205), (2180, 14564), (2398, 13240), (2648, 11990), (3310, 9592), (3641, 8720), (4360, 7282), (4796, 6620), (5296, 5995)]