19541840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14369}}^1$

素因数の和:14399

約数の個数: 40

約数和(自身を含む): 48110760

約数和(自身を除く): 28568920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14369, 28738, 57476, 71845, 114952, 143690, 229904, 244273, 287380, 488546, 574760, 977092, 1149520, 1221365, 1954184, 2442730, 3908368, 4885460, 9770920, 19541840]

約数ペア:

[(1, 19541840), (2, 9770920), (4, 4885460), (5, 3908368), (8, 2442730), (10, 1954184), (16, 1221365), (17, 1149520), (20, 977092), (34, 574760), (40, 488546), (68, 287380), (80, 244273), (85, 229904), (136, 143690), (170, 114952), (272, 71845), (340, 57476), (680, 28738), (1360, 14369)]