20358780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:675

約数の個数: 96

約数和(自身を含む): 62920704

約数和(自身を除く): 42561924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 607, 645, 780, 860, 1118, 1214, 1290, 1677, 1821, 2236, 2428, 2580, 2795, 3035, 3354, 3642, 5590, 6070, 6708, 7284, 7891, 8385, 9105, 11180, 12140, 15782, 16770, 18210, 23673, 26101, 31564, 33540, 36420, 39455, 47346, 52202, 78303, 78910, 94692, 104404, 118365, 130505, 156606, 157820, 236730, 261010, 313212, 339313, 391515, 473460, 522020, 678626, 783030, 1017939, 1357252, 1566060, 1696565, 2035878, 3393130, 4071756, 5089695, 6786260, 10179390, 20358780]

約数ペア:

[(1, 20358780), (2, 10179390), (3, 6786260), (4, 5089695), (5, 4071756), (6, 3393130), (10, 2035878), (12, 1696565), (13, 1566060), (15, 1357252), (20, 1017939), (26, 783030), (30, 678626), (39, 522020), (43, 473460), (52, 391515), (60, 339313), (65, 313212), (78, 261010), (86, 236730), (129, 157820), (130, 156606), (156, 130505), (172, 118365), (195, 104404), (215, 94692), (258, 78910), (260, 78303), (390, 52202), (430, 47346), (516, 39455), (559, 36420), (607, 33540), (645, 31564), (780, 26101), (860, 23673), (1118, 18210), (1214, 16770), (1290, 15782), (1677, 12140), (1821, 11180), (2236, 9105), (2428, 8385), (2580, 7891), (2795, 7284), (3035, 6708), (3354, 6070), (3642, 5590)]