2154690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 5686200

約数和(自身を除く): 3531510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 269, 445, 534, 538, 801, 807, 890, 1335, 1345, 1602, 1614, 2421, 2670, 2690, 4005, 4035, 4842, 8010, 8070, 12105, 23941, 24210, 47882, 71823, 119705, 143646, 215469, 239410, 359115, 430938, 718230, 1077345, 2154690]

約数ペア:

[(1, 2154690), (2, 1077345), (3, 718230), (5, 430938), (6, 359115), (9, 239410), (10, 215469), (15, 143646), (18, 119705), (30, 71823), (45, 47882), (89, 24210), (90, 23941), (178, 12105), (267, 8070), (269, 8010), (445, 4842), (534, 4035), (538, 4005), (801, 2690), (807, 2670), (890, 2421), (1335, 1614), (1345, 1602)]