25470640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1334

約数の個数: 80

約数和(自身を含む): 67183200

約数和(自身を除く): 41712560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1289, 1520, 1976, 2470, 2578, 3952, 4940, 5156, 6445, 9880, 10312, 12890, 16757, 19760, 20624, 24491, 25780, 33514, 48982, 51560, 67028, 83785, 97964, 103120, 122455, 134056, 167570, 195928, 244910, 268112, 318383, 335140, 391856, 489820, 636766, 670280, 979640, 1273532, 1340560, 1591915, 1959280, 2547064, 3183830, 5094128, 6367660, 12735320, 25470640]

約数ペア:

[(1, 25470640), (2, 12735320), (4, 6367660), (5, 5094128), (8, 3183830), (10, 2547064), (13, 1959280), (16, 1591915), (19, 1340560), (20, 1273532), (26, 979640), (38, 670280), (40, 636766), (52, 489820), (65, 391856), (76, 335140), (80, 318383), (95, 268112), (104, 244910), (130, 195928), (152, 167570), (190, 134056), (208, 122455), (247, 103120), (260, 97964), (304, 83785), (380, 67028), (494, 51560), (520, 48982), (760, 33514), (988, 25780), (1040, 24491), (1235, 20624), (1289, 19760), (1520, 16757), (1976, 12890), (2470, 10312), (2578, 9880), (3952, 6445), (4940, 5156)]