420904904

素因数分解:

$2^3\times 7^4\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1340

約数の個数: 80

約数和(自身を含む): 975588300

約数和(自身を除く): 554683396

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 343, 392, 476, 686, 833, 952, 1289, 1372, 1666, 2401, 2578, 2744, 3332, 4802, 5156, 5831, 6664, 9023, 9604, 10312, 11662, 18046, 19208, 21913, 23324, 36092, 40817, 43826, 46648, 63161, 72184, 81634, 87652, 126322, 153391, 163268, 175304, 252644, 306782, 326536, 442127, 505288, 613564, 884254, 1073737, 1227128, 1768508, 2147474, 3094889, 3537016, 4294948, 6189778, 7516159, 8589896, 12379556, 15032318, 24759112, 30064636, 52613113, 60129272, 105226226, 210452452, 420904904]

約数ペア:

[(1, 420904904), (2, 210452452), (4, 105226226), (7, 60129272), (8, 52613113), (14, 30064636), (17, 24759112), (28, 15032318), (34, 12379556), (49, 8589896), (56, 7516159), (68, 6189778), (98, 4294948), (119, 3537016), (136, 3094889), (196, 2147474), (238, 1768508), (343, 1227128), (392, 1073737), (476, 884254), (686, 613564), (833, 505288), (952, 442127), (1289, 326536), (1372, 306782), (1666, 252644), (2401, 175304), (2578, 163268), (2744, 153391), (3332, 126322), (4802, 87652), (5156, 81634), (5831, 72184), (6664, 63161), (9023, 46648), (9604, 43826), (10312, 40817), (11662, 36092), (18046, 23324), (19208, 21913)]