31440786

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 72648576

約数和(自身を除く): 41207790

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 131, 181, 221, 262, 362, 393, 442, 543, 663, 786, 1086, 1326, 1703, 2227, 2353, 3077, 3406, 4454, 4706, 5109, 6154, 6681, 7059, 9231, 10218, 13362, 14118, 18462, 23711, 28951, 40001, 47422, 57902, 71133, 80002, 86853, 120003, 142266, 173706, 240006, 308243, 403087, 616486, 806174, 924729, 1209261, 1849458, 2418522, 5240131, 10480262, 15720393, 31440786]

約数ペア:

[(1, 31440786), (2, 15720393), (3, 10480262), (6, 5240131), (13, 2418522), (17, 1849458), (26, 1209261), (34, 924729), (39, 806174), (51, 616486), (78, 403087), (102, 308243), (131, 240006), (181, 173706), (221, 142266), (262, 120003), (362, 86853), (393, 80002), (442, 71133), (543, 57902), (663, 47422), (786, 40001), (1086, 28951), (1326, 23711), (1703, 18462), (2227, 14118), (2353, 13362), (3077, 10218), (3406, 9231), (4454, 7059), (4706, 6681), (5109, 6154)]