66688840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 155131200

約数和(自身を除く): 88442360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 83, 106, 166, 212, 265, 332, 379, 415, 424, 530, 664, 758, 830, 1060, 1516, 1660, 1895, 2120, 3032, 3320, 3790, 4399, 7580, 8798, 15160, 17596, 20087, 21995, 31457, 35192, 40174, 43990, 62914, 80348, 87980, 100435, 125828, 157285, 160696, 175960, 200870, 251656, 314570, 401740, 629140, 803480, 1258280, 1667221, 3334442, 6668884, 8336105, 13337768, 16672210, 33344420, 66688840]

約数ペア:

[(1, 66688840), (2, 33344420), (4, 16672210), (5, 13337768), (8, 8336105), (10, 6668884), (20, 3334442), (40, 1667221), (53, 1258280), (83, 803480), (106, 629140), (166, 401740), (212, 314570), (265, 251656), (332, 200870), (379, 175960), (415, 160696), (424, 157285), (530, 125828), (664, 100435), (758, 87980), (830, 80348), (1060, 62914), (1516, 43990), (1660, 40174), (1895, 35192), (2120, 31457), (3032, 21995), (3320, 20087), (3790, 17596), (4399, 15160), (7580, 8798)]