256237420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{14347}}^1$

素因数の和:14422

約数の個数: 48

約数和(自身を含む): 578511360

約数和(自身を除く): 322273940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 8930, 14347, 17860, 28694, 57388, 71735, 143470, 272593, 286940, 545186, 674309, 1090372, 1348618, 1362965, 2697236, 2725930, 3371545, 5451860, 6743090, 12811871, 13486180, 25623742, 51247484, 64059355, 128118710, 256237420]

約数ペア:

[(1, 256237420), (2, 128118710), (4, 64059355), (5, 51247484), (10, 25623742), (19, 13486180), (20, 12811871), (38, 6743090), (47, 5451860), (76, 3371545), (94, 2725930), (95, 2697236), (188, 1362965), (190, 1348618), (235, 1090372), (380, 674309), (470, 545186), (893, 286940), (940, 272593), (1786, 143470), (3572, 71735), (4465, 57388), (8930, 28694), (14347, 17860)]