123970240

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12497}}^1$

素因数の和:12545

約数の個数: 56

約数和(自身を含む): 304751232

約数和(自身を除く): 180780992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 12497, 24994, 49988, 62485, 99976, 124970, 199952, 249940, 387407, 399904, 499880, 774814, 799808, 999760, 1549628, 1937035, 1999520, 3099256, 3874070, 3999040, 6198512, 7748140, 12397024, 15496280, 24794048, 30992560, 61985120, 123970240]

約数ペア:

[(1, 123970240), (2, 61985120), (4, 30992560), (5, 24794048), (8, 15496280), (10, 12397024), (16, 7748140), (20, 6198512), (31, 3999040), (32, 3874070), (40, 3099256), (62, 1999520), (64, 1937035), (80, 1549628), (124, 999760), (155, 799808), (160, 774814), (248, 499880), (310, 399904), (320, 387407), (496, 249940), (620, 199952), (992, 124970), (1240, 99976), (1984, 62485), (2480, 49988), (4960, 24994), (9920, 12497)]