18004980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 58189824

約数和(自身を除く): 40184844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 163, 210, 263, 326, 420, 489, 526, 652, 789, 815, 978, 1052, 1141, 1315, 1578, 1630, 1841, 1956, 2282, 2445, 2630, 3156, 3260, 3423, 3682, 3945, 4564, 4890, 5260, 5523, 5705, 6846, 7364, 7890, 9205, 9780, 11046, 11410, 13692, 15780, 17115, 18410, 22092, 22820, 27615, 34230, 36820, 42869, 55230, 68460, 85738, 110460, 128607, 171476, 214345, 257214, 300083, 428690, 514428, 600166, 643035, 857380, 900249, 1200332, 1286070, 1500415, 1800498, 2572140, 3000830, 3600996, 4501245, 6001660, 9002490, 18004980]

約数ペア:

[(1, 18004980), (2, 9002490), (3, 6001660), (4, 4501245), (5, 3600996), (6, 3000830), (7, 2572140), (10, 1800498), (12, 1500415), (14, 1286070), (15, 1200332), (20, 900249), (21, 857380), (28, 643035), (30, 600166), (35, 514428), (42, 428690), (60, 300083), (70, 257214), (84, 214345), (105, 171476), (140, 128607), (163, 110460), (210, 85738), (263, 68460), (326, 55230), (420, 42869), (489, 36820), (526, 34230), (652, 27615), (789, 22820), (815, 22092), (978, 18410), (1052, 17115), (1141, 15780), (1315, 13692), (1578, 11410), (1630, 11046), (1841, 9780), (1956, 9205), (2282, 7890), (2445, 7364), (2630, 6846), (3156, 5705), (3260, 5523), (3423, 5260), (3682, 4890), (3945, 4564)]