28796020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^2$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 70287840

約数和(自身を除く): 41491820

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 83, 95, 110, 166, 190, 209, 220, 332, 380, 415, 418, 830, 836, 913, 1045, 1577, 1660, 1826, 2090, 3154, 3652, 4180, 4565, 6308, 6889, 7885, 9130, 13778, 15770, 17347, 18260, 27556, 31540, 34445, 34694, 68890, 69388, 75779, 86735, 130891, 137780, 151558, 173470, 261782, 303116, 346940, 378895, 523564, 654455, 757790, 1308910, 1439801, 1515580, 2617820, 2879602, 5759204, 7199005, 14398010, 28796020]

約数ペア:

[(1, 28796020), (2, 14398010), (4, 7199005), (5, 5759204), (10, 2879602), (11, 2617820), (19, 1515580), (20, 1439801), (22, 1308910), (38, 757790), (44, 654455), (55, 523564), (76, 378895), (83, 346940), (95, 303116), (110, 261782), (166, 173470), (190, 151558), (209, 137780), (220, 130891), (332, 86735), (380, 75779), (415, 69388), (418, 68890), (830, 34694), (836, 34445), (913, 31540), (1045, 27556), (1577, 18260), (1660, 17347), (1826, 15770), (2090, 13778), (3154, 9130), (3652, 7885), (4180, 6889), (4565, 6308)]