1638208520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{29443}}^1$

素因数の和:29574

約数の個数: 64

約数和(自身を含む): 4006739520

約数和(自身を除く): 2368531000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 428, 520, 535, 856, 1070, 1391, 2140, 2782, 4280, 5564, 6955, 11128, 13910, 27820, 29443, 55640, 58886, 117772, 147215, 235544, 294430, 382759, 588860, 765518, 1177720, 1531036, 1913795, 3062072, 3150401, 3827590, 6300802, 7655180, 12601604, 15310360, 15752005, 25203208, 31504010, 40955213, 63008020, 81910426, 126016040, 163820852, 204776065, 327641704, 409552130, 819104260, 1638208520]

約数ペア:

[(1, 1638208520), (2, 819104260), (4, 409552130), (5, 327641704), (8, 204776065), (10, 163820852), (13, 126016040), (20, 81910426), (26, 63008020), (40, 40955213), (52, 31504010), (65, 25203208), (104, 15752005), (107, 15310360), (130, 12601604), (214, 7655180), (260, 6300802), (428, 3827590), (520, 3150401), (535, 3062072), (856, 1913795), (1070, 1531036), (1391, 1177720), (2140, 765518), (2782, 588860), (4280, 382759), (5564, 294430), (6955, 235544), (11128, 147215), (13910, 117772), (27820, 58886), (29443, 55640)]