140287980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47717}}^1$

素因数の和:47743

約数の個数: 72

約数和(自身を含む): 456947568

約数和(自身を除く): 316659588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 47717, 95434, 143151, 190868, 238585, 286302, 334019, 477170, 572604, 668038, 715755, 954340, 1002057, 1336076, 1431510, 1670095, 2004114, 2338133, 2863020, 3340190, 4008228, 4676266, 5010285, 6680380, 7014399, 9352532, 10020570, 11690665, 14028798, 20041140, 23381330, 28057596, 35071995, 46762660, 70143990, 140287980]

約数ペア:

[(1, 140287980), (2, 70143990), (3, 46762660), (4, 35071995), (5, 28057596), (6, 23381330), (7, 20041140), (10, 14028798), (12, 11690665), (14, 10020570), (15, 9352532), (20, 7014399), (21, 6680380), (28, 5010285), (30, 4676266), (35, 4008228), (42, 3340190), (49, 2863020), (60, 2338133), (70, 2004114), (84, 1670095), (98, 1431510), (105, 1336076), (140, 1002057), (147, 954340), (196, 715755), (210, 668038), (245, 572604), (294, 477170), (420, 334019), (490, 286302), (588, 238585), (735, 190868), (980, 143151), (1470, 95434), (2940, 47717)]