31256540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:627

約数の個数: 96

約数和(自身を含む): 83026944

約数和(自身を除く): 51770404

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 161, 170, 230, 238, 322, 340, 391, 460, 476, 571, 595, 644, 782, 805, 1142, 1190, 1564, 1610, 1955, 2284, 2380, 2737, 2855, 3220, 3910, 3997, 5474, 5710, 7820, 7994, 9707, 10948, 11420, 13133, 13685, 15988, 19414, 19985, 26266, 27370, 38828, 39970, 48535, 52532, 54740, 65665, 67949, 79940, 91931, 97070, 131330, 135898, 183862, 194140, 223261, 262660, 271796, 339745, 367724, 446522, 459655, 679490, 893044, 919310, 1116305, 1358980, 1562827, 1838620, 2232610, 3125654, 4465220, 6251308, 7814135, 15628270, 31256540]

約数ペア:

[(1, 31256540), (2, 15628270), (4, 7814135), (5, 6251308), (7, 4465220), (10, 3125654), (14, 2232610), (17, 1838620), (20, 1562827), (23, 1358980), (28, 1116305), (34, 919310), (35, 893044), (46, 679490), (68, 459655), (70, 446522), (85, 367724), (92, 339745), (115, 271796), (119, 262660), (140, 223261), (161, 194140), (170, 183862), (230, 135898), (238, 131330), (322, 97070), (340, 91931), (391, 79940), (460, 67949), (476, 65665), (571, 54740), (595, 52532), (644, 48535), (782, 39970), (805, 38828), (1142, 27370), (1190, 26266), (1564, 19985), (1610, 19414), (1955, 15988), (2284, 13685), (2380, 13133), (2737, 11420), (2855, 10948), (3220, 9707), (3910, 7994), (3997, 7820), (5474, 5710)]