27971120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 69825888

約数和(自身を除く): 41854768

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 131, 136, 157, 170, 262, 272, 314, 340, 524, 628, 655, 680, 785, 1048, 1256, 1310, 1360, 1570, 2096, 2227, 2512, 2620, 2669, 3140, 4454, 5240, 5338, 6280, 8908, 10480, 10676, 11135, 12560, 13345, 17816, 20567, 21352, 22270, 26690, 35632, 41134, 42704, 44540, 53380, 82268, 89080, 102835, 106760, 164536, 178160, 205670, 213520, 329072, 349639, 411340, 699278, 822680, 1398556, 1645360, 1748195, 2797112, 3496390, 5594224, 6992780, 13985560, 27971120]

約数ペア:

[(1, 27971120), (2, 13985560), (4, 6992780), (5, 5594224), (8, 3496390), (10, 2797112), (16, 1748195), (17, 1645360), (20, 1398556), (34, 822680), (40, 699278), (68, 411340), (80, 349639), (85, 329072), (131, 213520), (136, 205670), (157, 178160), (170, 164536), (262, 106760), (272, 102835), (314, 89080), (340, 82268), (524, 53380), (628, 44540), (655, 42704), (680, 41134), (785, 35632), (1048, 26690), (1256, 22270), (1310, 21352), (1360, 20567), (1570, 17816), (2096, 13345), (2227, 12560), (2512, 11135), (2620, 10676), (2669, 10480), (3140, 8908), (4454, 6280), (5240, 5338)]