389759968

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:876

約数の個数: 72

約数和(自身を含む): 840602448

約数和(自身を除く): 450842480

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 169, 194, 208, 338, 388, 416, 676, 743, 776, 1261, 1352, 1486, 1552, 2522, 2704, 2972, 3104, 5044, 5408, 5944, 9659, 10088, 11888, 16393, 19318, 20176, 23776, 32786, 38636, 40352, 65572, 72071, 77272, 125567, 131144, 144142, 154544, 251134, 262288, 288284, 309088, 502268, 524576, 576568, 936923, 1004536, 1153136, 1873846, 2009072, 2306272, 3747692, 4018144, 7495384, 12179999, 14990768, 24359998, 29981536, 48719996, 97439992, 194879984, 389759968]

約数ペア:

[(1, 389759968), (2, 194879984), (4, 97439992), (8, 48719996), (13, 29981536), (16, 24359998), (26, 14990768), (32, 12179999), (52, 7495384), (97, 4018144), (104, 3747692), (169, 2306272), (194, 2009072), (208, 1873846), (338, 1153136), (388, 1004536), (416, 936923), (676, 576568), (743, 524576), (776, 502268), (1261, 309088), (1352, 288284), (1486, 262288), (1552, 251134), (2522, 154544), (2704, 144142), (2972, 131144), (3104, 125567), (5044, 77272), (5408, 72071), (5944, 65572), (9659, 40352), (10088, 38636), (11888, 32786), (16393, 23776), (19318, 20176)]