1218140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 3274992

約数和(自身を除く): 2056852

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 113, 140, 154, 196, 220, 226, 245, 308, 385, 452, 490, 539, 565, 770, 791, 980, 1078, 1130, 1243, 1540, 1582, 2156, 2260, 2486, 2695, 3164, 3955, 4972, 5390, 5537, 6215, 7910, 8701, 10780, 11074, 12430, 15820, 17402, 22148, 24860, 27685, 34804, 43505, 55370, 60907, 87010, 110740, 121814, 174020, 243628, 304535, 609070, 1218140]

約数ペア:

[(1, 1218140), (2, 609070), (4, 304535), (5, 243628), (7, 174020), (10, 121814), (11, 110740), (14, 87010), (20, 60907), (22, 55370), (28, 43505), (35, 34804), (44, 27685), (49, 24860), (55, 22148), (70, 17402), (77, 15820), (98, 12430), (110, 11074), (113, 10780), (140, 8701), (154, 7910), (196, 6215), (220, 5537), (226, 5390), (245, 4972), (308, 3955), (385, 3164), (452, 2695), (490, 2486), (539, 2260), (565, 2156), (770, 1582), (791, 1540), (980, 1243), (1078, 1130)]