30963920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1612

約数の個数: 80

約数和(自身を含む): 81661440

約数和(自身を除く): 50697520

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, 1520, 1567, 1976, 2470, 3134, 3952, 4940, 6268, 7835, 9880, 12536, 15670, 19760, 20371, 25072, 29773, 31340, 40742, 59546, 62680, 81484, 101855, 119092, 125360, 148865, 162968, 203710, 238184, 297730, 325936, 387049, 407420, 476368, 595460, 774098, 814840, 1190920, 1548196, 1629680, 1935245, 2381840, 3096392, 3870490, 6192784, 7740980, 15481960, 30963920]

約数ペア:

[(1, 30963920), (2, 15481960), (4, 7740980), (5, 6192784), (8, 3870490), (10, 3096392), (13, 2381840), (16, 1935245), (19, 1629680), (20, 1548196), (26, 1190920), (38, 814840), (40, 774098), (52, 595460), (65, 476368), (76, 407420), (80, 387049), (95, 325936), (104, 297730), (130, 238184), (152, 203710), (190, 162968), (208, 148865), (247, 125360), (260, 119092), (304, 101855), (380, 81484), (494, 62680), (520, 59546), (760, 40742), (988, 31340), (1040, 29773), (1235, 25072), (1520, 20371), (1567, 19760), (1976, 15670), (2470, 12536), (3134, 9880), (3952, 7835), (4940, 6268)]