240402420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{2339}}^1$

素因数の和:2925

約数の個数: 72

約数和(自身を含む): 730810080

約数和(自身を除く): 490407660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 571, 1142, 1713, 2284, 2339, 2855, 3426, 4678, 5139, 5710, 6852, 7017, 8565, 9356, 10278, 11420, 11695, 14034, 17130, 20556, 21051, 23390, 25695, 28068, 34260, 35085, 42102, 46780, 51390, 70170, 84204, 102780, 105255, 140340, 210510, 421020, 1335569, 2671138, 4006707, 5342276, 6677845, 8013414, 12020121, 13355690, 16026828, 20033535, 24040242, 26711380, 40067070, 48080484, 60100605, 80134140, 120201210, 240402420]

約数ペア:

[(1, 240402420), (2, 120201210), (3, 80134140), (4, 60100605), (5, 48080484), (6, 40067070), (9, 26711380), (10, 24040242), (12, 20033535), (15, 16026828), (18, 13355690), (20, 12020121), (30, 8013414), (36, 6677845), (45, 5342276), (60, 4006707), (90, 2671138), (180, 1335569), (571, 421020), (1142, 210510), (1713, 140340), (2284, 105255), (2339, 102780), (2855, 84204), (3426, 70170), (4678, 51390), (5139, 46780), (5710, 42102), (6852, 35085), (7017, 34260), (8565, 28068), (9356, 25695), (10278, 23390), (11420, 21051), (11695, 20556), (14034, 17130)]