90780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 272160

約数和(自身を除く): 181380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 89, 102, 170, 178, 204, 255, 267, 340, 356, 445, 510, 534, 890, 1020, 1068, 1335, 1513, 1780, 2670, 3026, 4539, 5340, 6052, 7565, 9078, 15130, 18156, 22695, 30260, 45390, 90780]

約数ペア:

[(1, 90780), (2, 45390), (3, 30260), (4, 22695), (5, 18156), (6, 15130), (10, 9078), (12, 7565), (15, 6052), (17, 5340), (20, 4539), (30, 3026), (34, 2670), (51, 1780), (60, 1513), (68, 1335), (85, 1068), (89, 1020), (102, 890), (170, 534), (178, 510), (204, 445), (255, 356), (267, 340)]