20070880

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 96

約数和(自身を含む): 51601536

約数和(自身を除く): 31530656

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 68, 80, 85, 94, 136, 157, 160, 170, 188, 235, 272, 314, 340, 376, 470, 544, 628, 680, 752, 785, 799, 940, 1256, 1360, 1504, 1570, 1598, 1880, 2512, 2669, 2720, 3140, 3196, 3760, 3995, 5024, 5338, 6280, 6392, 7379, 7520, 7990, 10676, 12560, 12784, 13345, 14758, 15980, 21352, 25120, 25568, 26690, 29516, 31960, 36895, 42704, 53380, 59032, 63920, 73790, 85408, 106760, 118064, 125443, 127840, 147580, 213520, 236128, 250886, 295160, 427040, 501772, 590320, 627215, 1003544, 1180640, 1254430, 2007088, 2508860, 4014176, 5017720, 10035440, 20070880]

約数ペア:

[(1, 20070880), (2, 10035440), (4, 5017720), (5, 4014176), (8, 2508860), (10, 2007088), (16, 1254430), (17, 1180640), (20, 1003544), (32, 627215), (34, 590320), (40, 501772), (47, 427040), (68, 295160), (80, 250886), (85, 236128), (94, 213520), (136, 147580), (157, 127840), (160, 125443), (170, 118064), (188, 106760), (235, 85408), (272, 73790), (314, 63920), (340, 59032), (376, 53380), (470, 42704), (544, 36895), (628, 31960), (680, 29516), (752, 26690), (785, 25568), (799, 25120), (940, 21352), (1256, 15980), (1360, 14758), (1504, 13345), (1570, 12784), (1598, 12560), (1880, 10676), (2512, 7990), (2669, 7520), (2720, 7379), (3140, 6392), (3196, 6280), (3760, 5338), (3995, 5024)]