25085720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 63776160

約数和(自身を除く): 38690440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 73, 88, 110, 121, 142, 146, 220, 242, 284, 292, 355, 365, 440, 484, 568, 584, 605, 710, 730, 781, 803, 968, 1210, 1420, 1460, 1562, 1606, 2420, 2840, 2920, 3124, 3212, 3905, 4015, 4840, 5183, 6248, 6424, 7810, 8030, 8591, 8833, 10366, 15620, 16060, 17182, 17666, 20732, 25915, 31240, 32120, 34364, 35332, 41464, 42955, 44165, 51830, 57013, 68728, 70664, 85910, 88330, 103660, 114026, 171820, 176660, 207320, 228052, 285065, 343640, 353320, 456104, 570130, 627143, 1140260, 1254286, 2280520, 2508572, 3135715, 5017144, 6271430, 12542860, 25085720]

約数ペア:

[(1, 25085720), (2, 12542860), (4, 6271430), (5, 5017144), (8, 3135715), (10, 2508572), (11, 2280520), (20, 1254286), (22, 1140260), (40, 627143), (44, 570130), (55, 456104), (71, 353320), (73, 343640), (88, 285065), (110, 228052), (121, 207320), (142, 176660), (146, 171820), (220, 114026), (242, 103660), (284, 88330), (292, 85910), (355, 70664), (365, 68728), (440, 57013), (484, 51830), (568, 44165), (584, 42955), (605, 41464), (710, 35332), (730, 34364), (781, 32120), (803, 31240), (968, 25915), (1210, 20732), (1420, 17666), (1460, 17182), (1562, 16060), (1606, 15620), (2420, 10366), (2840, 8833), (2920, 8591), (3124, 8030), (3212, 7810), (3905, 6424), (4015, 6248), (4840, 5183)]