42728980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 106293600

約数和(自身を除く): 63564620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 413, 490, 590, 739, 826, 980, 1180, 1478, 1652, 2065, 2891, 2956, 3695, 4130, 5173, 5782, 7390, 8260, 10346, 11564, 14455, 14780, 20692, 25865, 28910, 36211, 43601, 51730, 57820, 72422, 87202, 103460, 144844, 174404, 181055, 218005, 305207, 362110, 436010, 610414, 724220, 872020, 1220828, 1526035, 2136449, 3052070, 4272898, 6104140, 8545796, 10682245, 21364490, 42728980]

約数ペア:

[(1, 42728980), (2, 21364490), (4, 10682245), (5, 8545796), (7, 6104140), (10, 4272898), (14, 3052070), (20, 2136449), (28, 1526035), (35, 1220828), (49, 872020), (59, 724220), (70, 610414), (98, 436010), (118, 362110), (140, 305207), (196, 218005), (236, 181055), (245, 174404), (295, 144844), (413, 103460), (490, 87202), (590, 72422), (739, 57820), (826, 51730), (980, 43601), (1180, 36211), (1478, 28910), (1652, 25865), (2065, 20692), (2891, 14780), (2956, 14455), (3695, 11564), (4130, 10346), (5173, 8260), (5782, 7390)]