20890614

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25765386

約数列:

[1, 2, 3, 6, 19, 29, 38, 57, 58, 71, 87, 89, 114, 142, 174, 178, 213, 267, 426, 534, 551, 1102, 1349, 1653, 1691, 2059, 2581, 2698, 3306, 3382, 4047, 4118, 5073, 5162, 6177, 6319, 7743, 8094, 10146, 12354, 12638, 15486, 18957, 37914, 39121, 49039, 78242, 98078, 117363, 120061, 147117, 183251, 234726, 240122, 294234, 360183, 366502, 549753, 720366, 1099506, 3481769, 6963538, 10445307, 20890614]

約数ペア:

[(1, 20890614), (2, 10445307), (3, 6963538), (6, 3481769), (19, 1099506), (29, 720366), (38, 549753), (57, 366502), (58, 360183), (71, 294234), (87, 240122), (89, 234726), (114, 183251), (142, 147117), (174, 120061), (178, 117363), (213, 98078), (267, 78242), (426, 49039), (534, 39121), (551, 37914), (1102, 18957), (1349, 15486), (1653, 12638), (1691, 12354), (2059, 10146), (2581, 8094), (2698, 7743), (3306, 6319), (3382, 6177), (4047, 5162), (4118, 5073)]