18325510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 20457290

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 245, 251, 298, 490, 502, 745, 1043, 1255, 1490, 1757, 2086, 2510, 3514, 5215, 7301, 8785, 10430, 12299, 14602, 17570, 24598, 36505, 37399, 61495, 73010, 74798, 122990, 186995, 261793, 373990, 523586, 1308965, 1832551, 2617930, 3665102, 9162755, 18325510]

約数ペア:

[(1, 18325510), (2, 9162755), (5, 3665102), (7, 2617930), (10, 1832551), (14, 1308965), (35, 523586), (49, 373990), (70, 261793), (98, 186995), (149, 122990), (245, 74798), (251, 73010), (298, 61495), (490, 37399), (502, 36505), (745, 24598), (1043, 17570), (1255, 14602), (1490, 12299), (1757, 10430), (2086, 8785), (2510, 7301), (3514, 5215)]