40459720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{631}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 104659200

約数和(自身を除く): 64199480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 631, 916, 1145, 1262, 1603, 1832, 2290, 2524, 3155, 3206, 4417, 4580, 5048, 6310, 6412, 8015, 8834, 9160, 12620, 12824, 16030, 17668, 22085, 25240, 32060, 35336, 44170, 64120, 88340, 144499, 176680, 288998, 577996, 722495, 1011493, 1155992, 1444990, 2022986, 2889980, 4045972, 5057465, 5779960, 8091944, 10114930, 20229860, 40459720]

約数ペア:

[(1, 40459720), (2, 20229860), (4, 10114930), (5, 8091944), (7, 5779960), (8, 5057465), (10, 4045972), (14, 2889980), (20, 2022986), (28, 1444990), (35, 1155992), (40, 1011493), (56, 722495), (70, 577996), (140, 288998), (229, 176680), (280, 144499), (458, 88340), (631, 64120), (916, 44170), (1145, 35336), (1262, 32060), (1603, 25240), (1832, 22085), (2290, 17668), (2524, 16030), (3155, 12824), (3206, 12620), (4417, 9160), (4580, 8834), (5048, 8015), (6310, 6412)]