2021869840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{20939}}^1$

素因数の和:21040

約数の個数: 80

約数和(自身を含む): 5047712640

約数和(自身を除く): 3025842800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 568, 680, 710, 1136, 1207, 1360, 1420, 2414, 2840, 4828, 5680, 6035, 9656, 12070, 19312, 20939, 24140, 41878, 48280, 83756, 96560, 104695, 167512, 209390, 335024, 355963, 418780, 711926, 837560, 1423852, 1486669, 1675120, 1779815, 2847704, 2973338, 3559630, 5695408, 5946676, 7119260, 7433345, 11893352, 14238520, 14866690, 23786704, 25273373, 28477040, 29733380, 50546746, 59466760, 101093492, 118933520, 126366865, 202186984, 252733730, 404373968, 505467460, 1010934920, 2021869840]

約数ペア:

[(1, 2021869840), (2, 1010934920), (4, 505467460), (5, 404373968), (8, 252733730), (10, 202186984), (16, 126366865), (17, 118933520), (20, 101093492), (34, 59466760), (40, 50546746), (68, 29733380), (71, 28477040), (80, 25273373), (85, 23786704), (136, 14866690), (142, 14238520), (170, 11893352), (272, 7433345), (284, 7119260), (340, 5946676), (355, 5695408), (568, 3559630), (680, 2973338), (710, 2847704), (1136, 1779815), (1207, 1675120), (1360, 1486669), (1420, 1423852), (2414, 837560), (2840, 711926), (4828, 418780), (5680, 355963), (6035, 335024), (9656, 209390), (12070, 167512), (19312, 104695), (20939, 96560), (24140, 83756), (41878, 48280)]