1245580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 3217536

約数和(自身を除く): 1971956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 49, 62, 70, 82, 98, 124, 140, 155, 164, 196, 205, 217, 245, 287, 310, 410, 434, 490, 574, 620, 820, 868, 980, 1085, 1148, 1271, 1435, 1519, 2009, 2170, 2542, 2870, 3038, 4018, 4340, 5084, 5740, 6076, 6355, 7595, 8036, 8897, 10045, 12710, 15190, 17794, 20090, 25420, 30380, 35588, 40180, 44485, 62279, 88970, 124558, 177940, 249116, 311395, 622790, 1245580]

約数ペア:

[(1, 1245580), (2, 622790), (4, 311395), (5, 249116), (7, 177940), (10, 124558), (14, 88970), (20, 62279), (28, 44485), (31, 40180), (35, 35588), (41, 30380), (49, 25420), (62, 20090), (70, 17794), (82, 15190), (98, 12710), (124, 10045), (140, 8897), (155, 8036), (164, 7595), (196, 6355), (205, 6076), (217, 5740), (245, 5084), (287, 4340), (310, 4018), (410, 3038), (434, 2870), (490, 2542), (574, 2170), (620, 2009), (820, 1519), (868, 1435), (980, 1271), (1085, 1148)]