25396700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 108

約数和(自身を含む): 65902032

約数和(自身を除く): 40505332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 71, 73, 98, 100, 140, 142, 146, 175, 196, 245, 284, 292, 350, 355, 365, 490, 497, 511, 700, 710, 730, 980, 994, 1022, 1225, 1420, 1460, 1775, 1825, 1988, 2044, 2450, 2485, 2555, 3479, 3550, 3577, 3650, 4900, 4970, 5110, 5183, 6958, 7100, 7154, 7300, 9940, 10220, 10366, 12425, 12775, 13916, 14308, 17395, 17885, 20732, 24850, 25550, 25915, 34790, 35770, 36281, 49700, 51100, 51830, 69580, 71540, 72562, 86975, 89425, 103660, 129575, 145124, 173950, 178850, 181405, 253967, 259150, 347900, 357700, 362810, 507934, 518300, 725620, 907025, 1015868, 1269835, 1814050, 2539670, 3628100, 5079340, 6349175, 12698350, 25396700]

約数ペア:

[(1, 25396700), (2, 12698350), (4, 6349175), (5, 5079340), (7, 3628100), (10, 2539670), (14, 1814050), (20, 1269835), (25, 1015868), (28, 907025), (35, 725620), (49, 518300), (50, 507934), (70, 362810), (71, 357700), (73, 347900), (98, 259150), (100, 253967), (140, 181405), (142, 178850), (146, 173950), (175, 145124), (196, 129575), (245, 103660), (284, 89425), (292, 86975), (350, 72562), (355, 71540), (365, 69580), (490, 51830), (497, 51100), (511, 49700), (700, 36281), (710, 35770), (730, 34790), (980, 25915), (994, 25550), (1022, 24850), (1225, 20732), (1420, 17885), (1460, 17395), (1775, 14308), (1825, 13916), (1988, 12775), (2044, 12425), (2450, 10366), (2485, 10220), (2555, 9940), (3479, 7300), (3550, 7154), (3577, 7100), (3650, 6958), (4900, 5183), (4970, 5110)]