18763570

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 39706200

約数和(自身を除く): 20942630

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 245, 257, 298, 490, 514, 745, 1043, 1285, 1490, 1799, 2086, 2570, 3598, 5215, 7301, 8995, 10430, 12593, 14602, 17990, 25186, 36505, 38293, 62965, 73010, 76586, 125930, 191465, 268051, 382930, 536102, 1340255, 1876357, 2680510, 3752714, 9381785, 18763570]

約数ペア:

[(1, 18763570), (2, 9381785), (5, 3752714), (7, 2680510), (10, 1876357), (14, 1340255), (35, 536102), (49, 382930), (70, 268051), (98, 191465), (149, 125930), (245, 76586), (257, 73010), (298, 62965), (490, 38293), (514, 36505), (745, 25186), (1043, 17990), (1285, 14602), (1490, 12593), (1799, 10430), (2086, 8995), (2570, 7301), (3598, 5215)]