138423680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6977}}^1$

素因数の和:7027

約数の個数: 64

約数和(自身を含む): 341642880

約数和(自身を除く): 203219200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6977, 9920, 13954, 19840, 27908, 34885, 55816, 69770, 111632, 139540, 216287, 223264, 279080, 432574, 446528, 558160, 865148, 893056, 1081435, 1116320, 1730296, 2162870, 2232640, 3460592, 4325740, 4465280, 6921184, 8651480, 13842368, 17302960, 27684736, 34605920, 69211840, 138423680]

約数ペア:

[(1, 138423680), (2, 69211840), (4, 34605920), (5, 27684736), (8, 17302960), (10, 13842368), (16, 8651480), (20, 6921184), (31, 4465280), (32, 4325740), (40, 3460592), (62, 2232640), (64, 2162870), (80, 1730296), (124, 1116320), (128, 1081435), (155, 893056), (160, 865148), (248, 558160), (310, 446528), (320, 432574), (496, 279080), (620, 223264), (640, 216287), (992, 139540), (1240, 111632), (1984, 69770), (2480, 55816), (3968, 34885), (4960, 27908), (6977, 19840), (9920, 13954)]