28946320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2141}}^1$

素因数の和:2180

約数の個数: 60

約数和(自身を含む): 72909396

約数和(自身を除く): 43963076

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2141, 2704, 3380, 4282, 6760, 8564, 10705, 13520, 17128, 21410, 27833, 34256, 42820, 55666, 85640, 111332, 139165, 171280, 222664, 278330, 361829, 445328, 556660, 723658, 1113320, 1447316, 1809145, 2226640, 2894632, 3618290, 5789264, 7236580, 14473160, 28946320]

約数ペア:

[(1, 28946320), (2, 14473160), (4, 7236580), (5, 5789264), (8, 3618290), (10, 2894632), (13, 2226640), (16, 1809145), (20, 1447316), (26, 1113320), (40, 723658), (52, 556660), (65, 445328), (80, 361829), (104, 278330), (130, 222664), (169, 171280), (208, 139165), (260, 111332), (338, 85640), (520, 55666), (676, 42820), (845, 34256), (1040, 27833), (1352, 21410), (1690, 17128), (2141, 13520), (2704, 10705), (3380, 8564), (4282, 6760)]