213287240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{683}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 495927360

約数和(自身を除く): 282640120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 211, 296, 370, 422, 683, 740, 844, 1055, 1366, 1480, 1688, 2110, 2732, 3415, 4220, 5464, 6830, 7807, 8440, 13660, 15614, 25271, 27320, 31228, 39035, 50542, 62456, 78070, 101084, 126355, 144113, 156140, 202168, 252710, 288226, 312280, 505420, 576452, 720565, 1010840, 1152904, 1441130, 2882260, 5332181, 5764520, 10664362, 21328724, 26660905, 42657448, 53321810, 106643620, 213287240]

約数ペア:

[(1, 213287240), (2, 106643620), (4, 53321810), (5, 42657448), (8, 26660905), (10, 21328724), (20, 10664362), (37, 5764520), (40, 5332181), (74, 2882260), (148, 1441130), (185, 1152904), (211, 1010840), (296, 720565), (370, 576452), (422, 505420), (683, 312280), (740, 288226), (844, 252710), (1055, 202168), (1366, 156140), (1480, 144113), (1688, 126355), (2110, 101084), (2732, 78070), (3415, 62456), (4220, 50542), (5464, 39035), (6830, 31228), (7807, 27320), (8440, 25271), (13660, 15614)]