71860480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1863

約数の個数: 72

約数和(自身を含む): 177778944

約数和(自身を除く): 105918464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1811, 1984, 2480, 3622, 3968, 4960, 7244, 7936, 9055, 9920, 14488, 18110, 19840, 28976, 36220, 39680, 56141, 57952, 72440, 112282, 115904, 144880, 224564, 231808, 280705, 289760, 449128, 463616, 561410, 579520, 898256, 1122820, 1159040, 1796512, 2245640, 2318080, 3593024, 4491280, 7186048, 8982560, 14372096, 17965120, 35930240, 71860480]

約数ペア:

[(1, 71860480), (2, 35930240), (4, 17965120), (5, 14372096), (8, 8982560), (10, 7186048), (16, 4491280), (20, 3593024), (31, 2318080), (32, 2245640), (40, 1796512), (62, 1159040), (64, 1122820), (80, 898256), (124, 579520), (128, 561410), (155, 463616), (160, 449128), (248, 289760), (256, 280705), (310, 231808), (320, 224564), (496, 144880), (620, 115904), (640, 112282), (992, 72440), (1240, 57952), (1280, 56141), (1811, 39680), (1984, 36220), (2480, 28976), (3622, 19840), (3968, 18110), (4960, 14488), (7244, 9920), (7936, 9055)]