7740980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1608

約数の個数: 48

約数和(自身を含む): 18439680

約数和(自身を除く): 10698700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 1567, 2470, 3134, 4940, 6268, 7835, 15670, 20371, 29773, 31340, 40742, 59546, 81484, 101855, 119092, 148865, 203710, 297730, 387049, 407420, 595460, 774098, 1548196, 1935245, 3870490, 7740980]

約数ペア:

[(1, 7740980), (2, 3870490), (4, 1935245), (5, 1548196), (10, 774098), (13, 595460), (19, 407420), (20, 387049), (26, 297730), (38, 203710), (52, 148865), (65, 119092), (76, 101855), (95, 81484), (130, 59546), (190, 40742), (247, 31340), (260, 29773), (380, 20371), (494, 15670), (988, 7835), (1235, 6268), (1567, 4940), (2470, 3134)]