211543780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2957}}^1$

素因数の和:3053

約数の個数: 72

約数和(自身を含む): 524027448

約数和(自身を除く): 312483668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1460, 2044, 2555, 2957, 3577, 5110, 5914, 7154, 10220, 11828, 14308, 14785, 17885, 20699, 29570, 35770, 41398, 59140, 71540, 82796, 103495, 144893, 206990, 215861, 289786, 413980, 431722, 579572, 724465, 863444, 1079305, 1448930, 1511027, 2158610, 2897860, 3022054, 4317220, 6044108, 7555135, 10577189, 15110270, 21154378, 30220540, 42308756, 52885945, 105771890, 211543780]

約数ペア:

[(1, 211543780), (2, 105771890), (4, 52885945), (5, 42308756), (7, 30220540), (10, 21154378), (14, 15110270), (20, 10577189), (28, 7555135), (35, 6044108), (49, 4317220), (70, 3022054), (73, 2897860), (98, 2158610), (140, 1511027), (146, 1448930), (196, 1079305), (245, 863444), (292, 724465), (365, 579572), (490, 431722), (511, 413980), (730, 289786), (980, 215861), (1022, 206990), (1460, 144893), (2044, 103495), (2555, 82796), (2957, 71540), (3577, 59140), (5110, 41398), (5914, 35770), (7154, 29570), (10220, 20699), (11828, 17885), (14308, 14785)]