2990624020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{421}}^1\times {\mathrm{1229}}^1$

素因数の和:1693

約数の個数: 72

約数和(自身を含む): 6692759640

約数和(自身を除く): 3702135620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 421, 578, 842, 1156, 1229, 1445, 1684, 2105, 2458, 2890, 4210, 4916, 5780, 6145, 7157, 8420, 12290, 14314, 20893, 24580, 28628, 35785, 41786, 71570, 83572, 104465, 121669, 143140, 208930, 243338, 355181, 417860, 486676, 517409, 608345, 710362, 1034818, 1216690, 1420724, 1775905, 2069636, 2433380, 2587045, 3551810, 5174090, 7103620, 8795953, 10348180, 17591906, 35183812, 43979765, 87959530, 149531201, 175919060, 299062402, 598124804, 747656005, 1495312010, 2990624020]

約数ペア:

[(1, 2990624020), (2, 1495312010), (4, 747656005), (5, 598124804), (10, 299062402), (17, 175919060), (20, 149531201), (34, 87959530), (68, 43979765), (85, 35183812), (170, 17591906), (289, 10348180), (340, 8795953), (421, 7103620), (578, 5174090), (842, 3551810), (1156, 2587045), (1229, 2433380), (1445, 2069636), (1684, 1775905), (2105, 1420724), (2458, 1216690), (2890, 1034818), (4210, 710362), (4916, 608345), (5780, 517409), (6145, 486676), (7157, 417860), (8420, 355181), (12290, 243338), (14314, 208930), (20893, 143140), (24580, 121669), (28628, 104465), (35785, 83572), (41786, 71570)]