20159646

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 46663680

約数和(自身を除く): 26504034

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 61, 78, 114, 122, 183, 223, 247, 366, 446, 494, 669, 741, 793, 1159, 1338, 1482, 1586, 2318, 2379, 2899, 3477, 4237, 4758, 5798, 6954, 8474, 8697, 12711, 13603, 15067, 17394, 25422, 27206, 30134, 40809, 45201, 55081, 81618, 90402, 110162, 165243, 176839, 258457, 330486, 353678, 516914, 530517, 775371, 1061034, 1550742, 3359941, 6719882, 10079823, 20159646]

約数ペア:

[(1, 20159646), (2, 10079823), (3, 6719882), (6, 3359941), (13, 1550742), (19, 1061034), (26, 775371), (38, 530517), (39, 516914), (57, 353678), (61, 330486), (78, 258457), (114, 176839), (122, 165243), (183, 110162), (223, 90402), (247, 81618), (366, 55081), (446, 45201), (494, 40809), (669, 30134), (741, 27206), (793, 25422), (1159, 17394), (1338, 15067), (1482, 13603), (1586, 12711), (2318, 8697), (2379, 8474), (2899, 6954), (3477, 5798), (4237, 4758)]