19478260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 24611660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 971, 1003, 1180, 1942, 2006, 3884, 4012, 4855, 5015, 9710, 10030, 16507, 19420, 20060, 33014, 57289, 66028, 82535, 114578, 165070, 229156, 286445, 330140, 572890, 973913, 1145780, 1947826, 3895652, 4869565, 9739130, 19478260]

約数ペア:

[(1, 19478260), (2, 9739130), (4, 4869565), (5, 3895652), (10, 1947826), (17, 1145780), (20, 973913), (34, 572890), (59, 330140), (68, 286445), (85, 229156), (118, 165070), (170, 114578), (236, 82535), (295, 66028), (340, 57289), (590, 33014), (971, 20060), (1003, 19420), (1180, 16507), (1942, 10030), (2006, 9710), (3884, 5015), (4012, 4855)]