28908160

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2657}}^1$

素因数の和:2693

約数の個数: 64

約数和(自身を含む): 73201320

約数和(自身を除く): 44293160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2657, 2720, 5314, 5440, 10628, 10880, 13285, 21256, 26570, 42512, 45169, 53140, 85024, 90338, 106280, 170048, 180676, 212560, 225845, 340096, 361352, 425120, 451690, 722704, 850240, 903380, 1445408, 1700480, 1806760, 2890816, 3613520, 5781632, 7227040, 14454080, 28908160]

約数ペア:

[(1, 28908160), (2, 14454080), (4, 7227040), (5, 5781632), (8, 3613520), (10, 2890816), (16, 1806760), (17, 1700480), (20, 1445408), (32, 903380), (34, 850240), (40, 722704), (64, 451690), (68, 425120), (80, 361352), (85, 340096), (128, 225845), (136, 212560), (160, 180676), (170, 170048), (272, 106280), (320, 90338), (340, 85024), (544, 53140), (640, 45169), (680, 42512), (1088, 26570), (1360, 21256), (2176, 13285), (2657, 10880), (2720, 10628), (5314, 5440)]