1642738140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{65657}}^1$

素因数の和:65811

約数の個数: 72

約数和(自身を含む): 5018897520

約数和(自身を除く): 3376159380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 12510, 25020, 65657, 131314, 196971, 262628, 328285, 393942, 590913, 656570, 787884, 984855, 1181826, 1313140, 1969710, 2363652, 2954565, 3939420, 5909130, 9126323, 11818260, 18252646, 27378969, 36505292, 45631615, 54757938, 82136907, 91263230, 109515876, 136894845, 164273814, 182526460, 273789690, 328547628, 410684535, 547579380, 821369070, 1642738140]

約数ペア:

[(1, 1642738140), (2, 821369070), (3, 547579380), (4, 410684535), (5, 328547628), (6, 273789690), (9, 182526460), (10, 164273814), (12, 136894845), (15, 109515876), (18, 91263230), (20, 82136907), (30, 54757938), (36, 45631615), (45, 36505292), (60, 27378969), (90, 18252646), (139, 11818260), (180, 9126323), (278, 5909130), (417, 3939420), (556, 2954565), (695, 2363652), (834, 1969710), (1251, 1313140), (1390, 1181826), (1668, 984855), (2085, 787884), (2502, 656570), (2780, 590913), (4170, 393942), (5004, 328285), (6255, 262628), (8340, 196971), (12510, 131314), (25020, 65657)]