890264920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{1013}}^1$

素因数の和:1324

約数の個数: 64

約数和(自身を含む): 2032542720

約数和(自身を除く): 1142277800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 173, 254, 346, 508, 635, 692, 865, 1013, 1016, 1270, 1384, 1730, 2026, 2540, 3460, 4052, 5065, 5080, 6920, 8104, 10130, 20260, 21971, 40520, 43942, 87884, 109855, 128651, 175249, 175768, 219710, 257302, 350498, 439420, 514604, 643255, 700996, 876245, 878840, 1029208, 1286510, 1401992, 1752490, 2573020, 3504980, 5146040, 7009960, 22256623, 44513246, 89026492, 111283115, 178052984, 222566230, 445132460, 890264920]

約数ペア:

[(1, 890264920), (2, 445132460), (4, 222566230), (5, 178052984), (8, 111283115), (10, 89026492), (20, 44513246), (40, 22256623), (127, 7009960), (173, 5146040), (254, 3504980), (346, 2573020), (508, 1752490), (635, 1401992), (692, 1286510), (865, 1029208), (1013, 878840), (1016, 876245), (1270, 700996), (1384, 643255), (1730, 514604), (2026, 439420), (2540, 350498), (3460, 257302), (4052, 219710), (5065, 175768), (5080, 175249), (6920, 128651), (8104, 109855), (10130, 87884), (20260, 43942), (21971, 40520)]