281437840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 679527936

約数和(自身を除く): 398090096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 283, 310, 401, 496, 566, 620, 802, 1132, 1240, 1415, 1604, 2005, 2264, 2480, 2830, 3208, 4010, 4528, 5660, 6416, 8020, 8773, 11320, 12431, 16040, 17546, 22640, 24862, 32080, 35092, 43865, 49724, 62155, 70184, 87730, 99448, 113483, 124310, 140368, 175460, 198896, 226966, 248620, 350920, 453932, 497240, 567415, 701840, 907864, 994480, 1134830, 1815728, 2269660, 3517973, 4539320, 7035946, 9078640, 14071892, 17589865, 28143784, 35179730, 56287568, 70359460, 140718920, 281437840]

約数ペア:

[(1, 281437840), (2, 140718920), (4, 70359460), (5, 56287568), (8, 35179730), (10, 28143784), (16, 17589865), (20, 14071892), (31, 9078640), (40, 7035946), (62, 4539320), (80, 3517973), (124, 2269660), (155, 1815728), (248, 1134830), (283, 994480), (310, 907864), (401, 701840), (496, 567415), (566, 497240), (620, 453932), (802, 350920), (1132, 248620), (1240, 226966), (1415, 198896), (1604, 175460), (2005, 140368), (2264, 124310), (2480, 113483), (2830, 99448), (3208, 87730), (4010, 70184), (4528, 62155), (5660, 49724), (6416, 43865), (8020, 35092), (8773, 32080), (11320, 24862), (12431, 22640), (16040, 17546)]