31405680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:895

約数の個数: 120

約数和(自身を含む): 107591328

約数和(自身を除く): 76185648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 53, 60, 72, 80, 90, 106, 120, 144, 159, 180, 212, 240, 265, 318, 360, 424, 477, 530, 636, 720, 795, 823, 848, 954, 1060, 1272, 1590, 1646, 1908, 2120, 2385, 2469, 2544, 3180, 3292, 3816, 4115, 4240, 4770, 4938, 6360, 6584, 7407, 7632, 8230, 9540, 9876, 12345, 12720, 13168, 14814, 16460, 19080, 19752, 24690, 29628, 32920, 37035, 38160, 39504, 43619, 49380, 59256, 65840, 74070, 87238, 98760, 118512, 130857, 148140, 174476, 197520, 218095, 261714, 296280, 348952, 392571, 436190, 523428, 592560, 654285, 697904, 785142, 872380, 1046856, 1308570, 1570284, 1744760, 1962855, 2093712, 2617140, 3140568, 3489520, 3925710, 5234280, 6281136, 7851420, 10468560, 15702840, 31405680]

約数ペア:

[(1, 31405680), (2, 15702840), (3, 10468560), (4, 7851420), (5, 6281136), (6, 5234280), (8, 3925710), (9, 3489520), (10, 3140568), (12, 2617140), (15, 2093712), (16, 1962855), (18, 1744760), (20, 1570284), (24, 1308570), (30, 1046856), (36, 872380), (40, 785142), (45, 697904), (48, 654285), (53, 592560), (60, 523428), (72, 436190), (80, 392571), (90, 348952), (106, 296280), (120, 261714), (144, 218095), (159, 197520), (180, 174476), (212, 148140), (240, 130857), (265, 118512), (318, 98760), (360, 87238), (424, 74070), (477, 65840), (530, 59256), (636, 49380), (720, 43619), (795, 39504), (823, 38160), (848, 37035), (954, 32920), (1060, 29628), (1272, 24690), (1590, 19752), (1646, 19080), (1908, 16460), (2120, 14814), (2385, 13168), (2469, 12720), (2544, 12345), (3180, 9876), (3292, 9540), (3816, 8230), (4115, 7632), (4240, 7407), (4770, 6584), (4938, 6360)]