20402910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:618

約数の個数: 96

約数和(自身を含む): 59540832

約数和(自身を除く): 39137922

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 37, 45, 55, 66, 74, 90, 99, 110, 111, 165, 185, 198, 222, 330, 333, 370, 407, 495, 555, 557, 666, 814, 990, 1110, 1114, 1221, 1665, 1671, 2035, 2442, 2785, 3330, 3342, 3663, 4070, 5013, 5570, 6105, 6127, 7326, 8355, 10026, 12210, 12254, 16710, 18315, 18381, 20609, 25065, 30635, 36630, 36762, 41218, 50130, 55143, 61270, 61827, 91905, 103045, 110286, 123654, 183810, 185481, 206090, 226699, 275715, 309135, 370962, 453398, 551430, 618270, 680097, 927405, 1133495, 1360194, 1854810, 2040291, 2266990, 3400485, 4080582, 6800970, 10201455, 20402910]

約数ペア:

[(1, 20402910), (2, 10201455), (3, 6800970), (5, 4080582), (6, 3400485), (9, 2266990), (10, 2040291), (11, 1854810), (15, 1360194), (18, 1133495), (22, 927405), (30, 680097), (33, 618270), (37, 551430), (45, 453398), (55, 370962), (66, 309135), (74, 275715), (90, 226699), (99, 206090), (110, 185481), (111, 183810), (165, 123654), (185, 110286), (198, 103045), (222, 91905), (330, 61827), (333, 61270), (370, 55143), (407, 50130), (495, 41218), (555, 36762), (557, 36630), (666, 30635), (814, 25065), (990, 20609), (1110, 18381), (1114, 18315), (1221, 16710), (1665, 12254), (1671, 12210), (2035, 10026), (2442, 8355), (2785, 7326), (3330, 6127), (3342, 6105), (3663, 5570), (4070, 5013)]