621716420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{17203}}^1$

素因数の和:17364

約数の個数: 48

約数和(自身を含む): 1416233280

約数和(自身を除く): 794516860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2780, 3614, 7228, 9035, 17203, 18070, 34406, 36140, 68812, 86015, 172030, 223639, 344060, 447278, 894556, 1118195, 2236390, 2391217, 4472780, 4782434, 9564868, 11956085, 23912170, 31085821, 47824340, 62171642, 124343284, 155429105, 310858210, 621716420]

約数ペア:

[(1, 621716420), (2, 310858210), (4, 155429105), (5, 124343284), (10, 62171642), (13, 47824340), (20, 31085821), (26, 23912170), (52, 11956085), (65, 9564868), (130, 4782434), (139, 4472780), (260, 2391217), (278, 2236390), (556, 1118195), (695, 894556), (1390, 447278), (1807, 344060), (2780, 223639), (3614, 172030), (7228, 86015), (9035, 68812), (17203, 36140), (18070, 34406)]