128306380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{2089}}^1$

素因数の和:2218

約数の個数: 48

約数和(自身を含む): 280193760

約数和(自身を除く): 151887380

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 83, 148, 166, 185, 332, 370, 415, 740, 830, 1660, 2089, 3071, 4178, 6142, 8356, 10445, 12284, 15355, 20890, 30710, 41780, 61420, 77293, 154586, 173387, 309172, 346774, 386465, 693548, 772930, 866935, 1545860, 1733870, 3467740, 6415319, 12830638, 25661276, 32076595, 64153190, 128306380]

約数ペア:

[(1, 128306380), (2, 64153190), (4, 32076595), (5, 25661276), (10, 12830638), (20, 6415319), (37, 3467740), (74, 1733870), (83, 1545860), (148, 866935), (166, 772930), (185, 693548), (332, 386465), (370, 346774), (415, 309172), (740, 173387), (830, 154586), (1660, 77293), (2089, 61420), (3071, 41780), (4178, 30710), (6142, 20890), (8356, 15355), (10445, 12284)]