20515170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1347

約数の個数: 64

約数和(自身を含む): 54359424

約数和(自身を除く): 33844254

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 41, 65, 78, 82, 123, 130, 195, 205, 246, 390, 410, 533, 615, 1066, 1230, 1283, 1599, 2566, 2665, 3198, 3849, 5330, 6415, 7698, 7995, 12830, 15990, 16679, 19245, 33358, 38490, 50037, 52603, 83395, 100074, 105206, 157809, 166790, 250185, 263015, 315618, 500370, 526030, 683839, 789045, 1367678, 1578090, 2051517, 3419195, 4103034, 6838390, 10257585, 20515170]

約数ペア:

[(1, 20515170), (2, 10257585), (3, 6838390), (5, 4103034), (6, 3419195), (10, 2051517), (13, 1578090), (15, 1367678), (26, 789045), (30, 683839), (39, 526030), (41, 500370), (65, 315618), (78, 263015), (82, 250185), (123, 166790), (130, 157809), (195, 105206), (205, 100074), (246, 83395), (390, 52603), (410, 50037), (533, 38490), (615, 33358), (1066, 19245), (1230, 16679), (1283, 15990), (1599, 12830), (2566, 7995), (2665, 7698), (3198, 6415), (3849, 5330)]