220141840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{161869}}^1$

素因数の和:161899

約数の個数: 40

約数和(自身を含む): 541940760

約数和(自身を除く): 321798920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 161869, 323738, 647476, 809345, 1294952, 1618690, 2589904, 2751773, 3237380, 5503546, 6474760, 11007092, 12949520, 13758865, 22014184, 27517730, 44028368, 55035460, 110070920, 220141840]

約数ペア:

[(1, 220141840), (2, 110070920), (4, 55035460), (5, 44028368), (8, 27517730), (10, 22014184), (16, 13758865), (17, 12949520), (20, 11007092), (34, 6474760), (40, 5503546), (68, 3237380), (80, 2751773), (85, 2589904), (136, 1618690), (170, 1294952), (272, 809345), (340, 647476), (680, 323738), (1360, 161869)]