991866428

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2731}}^1$

素因数の和:2875

約数の個数: 72

約数和(自身を含む): 2158334640

約数和(自身を除く): 1166468212

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 109, 119, 196, 218, 238, 436, 476, 763, 833, 1526, 1666, 1853, 2731, 3052, 3332, 3706, 5341, 5462, 7412, 10682, 10924, 12971, 19117, 21364, 25942, 38234, 46427, 51884, 76468, 90797, 92854, 133819, 181594, 185708, 267638, 297679, 324989, 363188, 535276, 595358, 649978, 1190716, 1299956, 2083753, 2274923, 4167506, 4549846, 5060543, 8335012, 9099692, 10121086, 14586271, 20242172, 29172542, 35423801, 58345084, 70847602, 141695204, 247966607, 495933214, 991866428]

約数ペア:

[(1, 991866428), (2, 495933214), (4, 247966607), (7, 141695204), (14, 70847602), (17, 58345084), (28, 35423801), (34, 29172542), (49, 20242172), (68, 14586271), (98, 10121086), (109, 9099692), (119, 8335012), (196, 5060543), (218, 4549846), (238, 4167506), (436, 2274923), (476, 2083753), (763, 1299956), (833, 1190716), (1526, 649978), (1666, 595358), (1853, 535276), (2731, 363188), (3052, 324989), (3332, 297679), (3706, 267638), (5341, 185708), (5462, 181594), (7412, 133819), (10682, 92854), (10924, 90797), (12971, 76468), (19117, 51884), (21364, 46427), (25942, 38234)]