31728120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 102435840

約数和(自身を除く): 70707720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 103, 120, 136, 151, 170, 204, 206, 255, 302, 309, 340, 408, 412, 453, 510, 515, 604, 618, 680, 755, 824, 906, 1020, 1030, 1208, 1236, 1510, 1545, 1751, 1812, 2040, 2060, 2265, 2472, 2567, 3020, 3090, 3502, 3624, 4120, 4530, 5134, 5253, 6040, 6180, 7004, 7701, 8755, 9060, 10268, 10506, 12360, 12835, 14008, 15402, 15553, 17510, 18120, 20536, 21012, 25670, 26265, 30804, 31106, 35020, 38505, 42024, 46659, 51340, 52530, 61608, 62212, 70040, 77010, 77765, 93318, 102680, 105060, 124424, 154020, 155530, 186636, 210120, 233295, 264401, 308040, 311060, 373272, 466590, 528802, 622120, 793203, 933180, 1057604, 1322005, 1586406, 1866360, 2115208, 2644010, 3172812, 3966015, 5288020, 6345624, 7932030, 10576040, 15864060, 31728120]

約数ペア:

[(1, 31728120), (2, 15864060), (3, 10576040), (4, 7932030), (5, 6345624), (6, 5288020), (8, 3966015), (10, 3172812), (12, 2644010), (15, 2115208), (17, 1866360), (20, 1586406), (24, 1322005), (30, 1057604), (34, 933180), (40, 793203), (51, 622120), (60, 528802), (68, 466590), (85, 373272), (102, 311060), (103, 308040), (120, 264401), (136, 233295), (151, 210120), (170, 186636), (204, 155530), (206, 154020), (255, 124424), (302, 105060), (309, 102680), (340, 93318), (408, 77765), (412, 77010), (453, 70040), (510, 62212), (515, 61608), (604, 52530), (618, 51340), (680, 46659), (755, 42024), (824, 38505), (906, 35020), (1020, 31106), (1030, 30804), (1208, 26265), (1236, 25670), (1510, 21012), (1545, 20536), (1751, 18120), (1812, 17510), (2040, 15553), (2060, 15402), (2265, 14008), (2472, 12835), (2567, 12360), (3020, 10506), (3090, 10268), (3502, 9060), (3624, 8755), (4120, 7701), (4530, 7004), (5134, 6180), (5253, 6040)]