405221336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 898867200

約数和(自身を除く): 493645864

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 43, 52, 62, 74, 79, 86, 104, 124, 148, 158, 172, 248, 296, 316, 344, 403, 481, 559, 632, 806, 962, 1027, 1118, 1147, 1333, 1591, 1612, 1924, 2054, 2236, 2294, 2449, 2666, 2923, 3182, 3224, 3397, 3848, 4108, 4472, 4588, 4898, 5332, 5846, 6364, 6794, 8216, 9176, 9796, 10664, 11692, 12728, 13588, 14911, 17329, 19592, 20683, 23384, 27176, 29822, 31837, 34658, 37999, 41366, 44161, 49321, 59644, 63674, 69316, 75998, 82732, 88322, 90613, 98642, 105307, 119288, 125689, 127348, 138632, 151996, 165464, 176644, 181226, 197284, 210614, 251378, 254696, 303992, 353288, 362452, 394568, 421228, 502756, 641173, 724904, 842456, 1005512, 1177969, 1282346, 1368991, 1633957, 2355938, 2564692, 2737982, 3267914, 3896359, 4711876, 5129384, 5475964, 6535828, 7792718, 9423752, 10951928, 13071656, 15585436, 31170872, 50652667, 101305334, 202610668, 405221336]

約数ペア:

[(1, 405221336), (2, 202610668), (4, 101305334), (8, 50652667), (13, 31170872), (26, 15585436), (31, 13071656), (37, 10951928), (43, 9423752), (52, 7792718), (62, 6535828), (74, 5475964), (79, 5129384), (86, 4711876), (104, 3896359), (124, 3267914), (148, 2737982), (158, 2564692), (172, 2355938), (248, 1633957), (296, 1368991), (316, 1282346), (344, 1177969), (403, 1005512), (481, 842456), (559, 724904), (632, 641173), (806, 502756), (962, 421228), (1027, 394568), (1118, 362452), (1147, 353288), (1333, 303992), (1591, 254696), (1612, 251378), (1924, 210614), (2054, 197284), (2236, 181226), (2294, 176644), (2449, 165464), (2666, 151996), (2923, 138632), (3182, 127348), (3224, 125689), (3397, 119288), (3848, 105307), (4108, 98642), (4472, 90613), (4588, 88322), (4898, 82732), (5332, 75998), (5846, 69316), (6364, 63674), (6794, 59644), (8216, 49321), (9176, 44161), (9796, 41366), (10664, 37999), (11692, 34658), (12728, 31837), (13588, 29822), (14911, 27176), (17329, 23384), (19592, 20683)]