81217692

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2087}}^1$

素因数の和:2167

約数の個数: 72

約数和(自身を含む): 218889216

約数和(自身を除く): 137671524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 47, 69, 92, 94, 138, 141, 188, 207, 276, 282, 414, 423, 564, 828, 846, 1081, 1692, 2087, 2162, 3243, 4174, 4324, 6261, 6486, 8348, 9729, 12522, 12972, 18783, 19458, 25044, 37566, 38916, 48001, 75132, 96002, 98089, 144003, 192004, 196178, 288006, 294267, 392356, 432009, 576012, 588534, 864018, 882801, 1177068, 1728036, 1765602, 2256047, 3531204, 4512094, 6768141, 9024188, 13536282, 20304423, 27072564, 40608846, 81217692]

約数ペア:

[(1, 81217692), (2, 40608846), (3, 27072564), (4, 20304423), (6, 13536282), (9, 9024188), (12, 6768141), (18, 4512094), (23, 3531204), (36, 2256047), (46, 1765602), (47, 1728036), (69, 1177068), (92, 882801), (94, 864018), (138, 588534), (141, 576012), (188, 432009), (207, 392356), (276, 294267), (282, 288006), (414, 196178), (423, 192004), (564, 144003), (828, 98089), (846, 96002), (1081, 75132), (1692, 48001), (2087, 38916), (2162, 37566), (3243, 25044), (4174, 19458), (4324, 18783), (6261, 12972), (6486, 12522), (8348, 9729)]