64700270

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 118389600

約数和(自身を除く): 53689330

約数列:

[1, 2, 5, 10, 149, 173, 251, 298, 346, 502, 745, 865, 1255, 1490, 1730, 2510, 25777, 37399, 43423, 51554, 74798, 86846, 128885, 186995, 217115, 257770, 373990, 434230, 6470027, 12940054, 32350135, 64700270]

約数ペア:

[(1, 64700270), (2, 32350135), (5, 12940054), (10, 6470027), (149, 434230), (173, 373990), (251, 257770), (298, 217115), (346, 186995), (502, 128885), (745, 86846), (865, 74798), (1255, 51554), (1490, 43423), (1730, 37399), (2510, 25777)]