28563240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 91238400

約数和(自身を除く): 62675160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 79, 92, 115, 120, 131, 138, 158, 184, 230, 237, 262, 276, 316, 345, 393, 395, 460, 474, 524, 552, 632, 655, 690, 786, 790, 920, 948, 1048, 1185, 1310, 1380, 1572, 1580, 1817, 1896, 1965, 2370, 2620, 2760, 3013, 3144, 3160, 3634, 3930, 4740, 5240, 5451, 6026, 7268, 7860, 9039, 9085, 9480, 10349, 10902, 12052, 14536, 15065, 15720, 18078, 18170, 20698, 21804, 24104, 27255, 30130, 31047, 36156, 36340, 41396, 43608, 45195, 51745, 54510, 60260, 62094, 72312, 72680, 82792, 90390, 103490, 109020, 120520, 124188, 155235, 180780, 206980, 218040, 238027, 248376, 310470, 361560, 413960, 476054, 620940, 714081, 952108, 1190135, 1241880, 1428162, 1904216, 2380270, 2856324, 3570405, 4760540, 5712648, 7140810, 9521080, 14281620, 28563240]

約数ペア:

[(1, 28563240), (2, 14281620), (3, 9521080), (4, 7140810), (5, 5712648), (6, 4760540), (8, 3570405), (10, 2856324), (12, 2380270), (15, 1904216), (20, 1428162), (23, 1241880), (24, 1190135), (30, 952108), (40, 714081), (46, 620940), (60, 476054), (69, 413960), (79, 361560), (92, 310470), (115, 248376), (120, 238027), (131, 218040), (138, 206980), (158, 180780), (184, 155235), (230, 124188), (237, 120520), (262, 109020), (276, 103490), (316, 90390), (345, 82792), (393, 72680), (395, 72312), (460, 62094), (474, 60260), (524, 54510), (552, 51745), (632, 45195), (655, 43608), (690, 41396), (786, 36340), (790, 36156), (920, 31047), (948, 30130), (1048, 27255), (1185, 24104), (1310, 21804), (1380, 20698), (1572, 18170), (1580, 18078), (1817, 15720), (1896, 15065), (1965, 14536), (2370, 12052), (2620, 10902), (2760, 10349), (3013, 9480), (3144, 9085), (3160, 9039), (3634, 7860), (3930, 7268), (4740, 6026), (5240, 5451)]