427040

素因数分解:

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

素因数の和:189

約数の個数: 48

約数和(自身を含む): 1075032

約数和(自身を除く): 647992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 157, 160, 170, 272, 314, 340, 544, 628, 680, 785, 1256, 1360, 1570, 2512, 2669, 2720, 3140, 5024, 5338, 6280, 10676, 12560, 13345, 21352, 25120, 26690, 42704, 53380, 85408, 106760, 213520, 427040]

約数ペア:

[(1, 427040), (2, 213520), (4, 106760), (5, 85408), (8, 53380), (10, 42704), (16, 26690), (17, 25120), (20, 21352), (32, 13345), (34, 12560), (40, 10676), (68, 6280), (80, 5338), (85, 5024), (136, 3140), (157, 2720), (160, 2669), (170, 2512), (272, 1570), (314, 1360), (340, 1256), (544, 785), (628, 680)]