78897920

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1163}}^1$

素因数の和:1237

約数の個数: 72

約数和(自身を含む): 192716496

約数和(自身を除く): 113818576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 530, 640, 848, 1060, 1163, 1280, 1696, 2120, 2326, 3392, 4240, 4652, 5815, 6784, 8480, 9304, 11630, 13568, 16960, 18608, 23260, 33920, 37216, 46520, 61639, 67840, 74432, 93040, 123278, 148864, 186080, 246556, 297728, 308195, 372160, 493112, 616390, 744320, 986224, 1232780, 1488640, 1972448, 2465560, 3944896, 4931120, 7889792, 9862240, 15779584, 19724480, 39448960, 78897920]

約数ペア:

[(1, 78897920), (2, 39448960), (4, 19724480), (5, 15779584), (8, 9862240), (10, 7889792), (16, 4931120), (20, 3944896), (32, 2465560), (40, 1972448), (53, 1488640), (64, 1232780), (80, 986224), (106, 744320), (128, 616390), (160, 493112), (212, 372160), (256, 308195), (265, 297728), (320, 246556), (424, 186080), (530, 148864), (640, 123278), (848, 93040), (1060, 74432), (1163, 67840), (1280, 61639), (1696, 46520), (2120, 37216), (2326, 33920), (3392, 23260), (4240, 18608), (4652, 16960), (5815, 13568), (6784, 11630), (8480, 9304)]