28857280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2957

約数の個数: 56

約数和(自身を含む): 70957440

約数和(自身を除く): 42100160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 2909, 4960, 5818, 9920, 11636, 14545, 23272, 29090, 46544, 58180, 90179, 93088, 116360, 180358, 186176, 232720, 360716, 450895, 465440, 721432, 901790, 930880, 1442864, 1803580, 2885728, 3607160, 5771456, 7214320, 14428640, 28857280]

約数ペア:

[(1, 28857280), (2, 14428640), (4, 7214320), (5, 5771456), (8, 3607160), (10, 2885728), (16, 1803580), (20, 1442864), (31, 930880), (32, 901790), (40, 721432), (62, 465440), (64, 450895), (80, 360716), (124, 232720), (155, 186176), (160, 180358), (248, 116360), (310, 93088), (320, 90179), (496, 58180), (620, 46544), (992, 29090), (1240, 23272), (1984, 14545), (2480, 11636), (2909, 9920), (4960, 5818)]