641412612

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{443}}^1\times {\mathrm{1087}}^1$

素因数の和:1577

約数の個数: 72

約数和(自身を含む): 1670462976

約数和(自身を除く): 1029050364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 443, 444, 666, 886, 1087, 1329, 1332, 1772, 2174, 2658, 3261, 3987, 4348, 5316, 6522, 7974, 9783, 13044, 15948, 16391, 19566, 32782, 39132, 40219, 49173, 65564, 80438, 98346, 120657, 147519, 160876, 196692, 241314, 295038, 361971, 481541, 482628, 590076, 723942, 963082, 1444623, 1447884, 1926164, 2889246, 4333869, 5778492, 8667738, 17335476, 17817017, 35634034, 53451051, 71268068, 106902102, 160353153, 213804204, 320706306, 641412612]

約数ペア:

[(1, 641412612), (2, 320706306), (3, 213804204), (4, 160353153), (6, 106902102), (9, 71268068), (12, 53451051), (18, 35634034), (36, 17817017), (37, 17335476), (74, 8667738), (111, 5778492), (148, 4333869), (222, 2889246), (333, 1926164), (443, 1447884), (444, 1444623), (666, 963082), (886, 723942), (1087, 590076), (1329, 482628), (1332, 481541), (1772, 361971), (2174, 295038), (2658, 241314), (3261, 196692), (3987, 160876), (4348, 147519), (5316, 120657), (6522, 98346), (7974, 80438), (9783, 65564), (13044, 49173), (15948, 40219), (16391, 39132), (19566, 32782)]