663609940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{2957}}^1$

素因数の和:3209

約数の個数: 72

約数和(自身を含む): 1628733960

約数和(自身を除く): 965124020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 229, 245, 458, 490, 916, 980, 1145, 1603, 2290, 2957, 3206, 4580, 5914, 6412, 8015, 11221, 11828, 14785, 16030, 20699, 22442, 29570, 32060, 41398, 44884, 56105, 59140, 82796, 103495, 112210, 144893, 206990, 224420, 289786, 413980, 579572, 677153, 724465, 1354306, 1448930, 2708612, 2897860, 3385765, 4740071, 6771530, 9480142, 13543060, 18960284, 23700355, 33180497, 47400710, 66360994, 94801420, 132721988, 165902485, 331804970, 663609940]

約数ペア:

[(1, 663609940), (2, 331804970), (4, 165902485), (5, 132721988), (7, 94801420), (10, 66360994), (14, 47400710), (20, 33180497), (28, 23700355), (35, 18960284), (49, 13543060), (70, 9480142), (98, 6771530), (140, 4740071), (196, 3385765), (229, 2897860), (245, 2708612), (458, 1448930), (490, 1354306), (916, 724465), (980, 677153), (1145, 579572), (1603, 413980), (2290, 289786), (2957, 224420), (3206, 206990), (4580, 144893), (5914, 112210), (6412, 103495), (8015, 82796), (11221, 59140), (11828, 56105), (14785, 44884), (16030, 41398), (20699, 32060), (22442, 29570)]