81340215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 149299200

約数和(自身を除く): 67958985

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 89, 145, 165, 191, 267, 319, 435, 445, 573, 955, 957, 979, 1335, 1595, 2101, 2581, 2865, 2937, 4785, 4895, 5539, 6303, 7743, 10505, 12905, 14685, 16617, 16999, 27695, 28391, 31515, 38715, 50997, 60929, 83085, 84995, 85173, 141955, 182787, 186989, 254985, 304645, 425865, 492971, 560967, 913935, 934945, 1478913, 2464855, 2804835, 5422681, 7394565, 16268043, 27113405, 81340215]

約数ペア:

[(1, 81340215), (3, 27113405), (5, 16268043), (11, 7394565), (15, 5422681), (29, 2804835), (33, 2464855), (55, 1478913), (87, 934945), (89, 913935), (145, 560967), (165, 492971), (191, 425865), (267, 304645), (319, 254985), (435, 186989), (445, 182787), (573, 141955), (955, 85173), (957, 84995), (979, 83085), (1335, 60929), (1595, 50997), (2101, 38715), (2581, 31515), (2865, 28391), (2937, 27695), (4785, 16999), (4895, 16617), (5539, 14685), (6303, 12905), (7743, 10505)]