819442000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31517}}^1$

素因数の和:31553

約数の個数: 80

約数和(自身を含む): 2133894672

約数和(自身を除く): 1314452672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 1000, 1040, 1300, 1625, 2000, 2600, 3250, 5200, 6500, 13000, 26000, 31517, 63034, 126068, 157585, 252136, 315170, 409721, 504272, 630340, 787925, 819442, 1260680, 1575850, 1638884, 2048605, 2521360, 3151700, 3277768, 3939625, 4097210, 6303400, 6555536, 7879250, 8194420, 10243025, 12606800, 15758500, 16388840, 20486050, 31517000, 32777680, 40972100, 51215125, 63034000, 81944200, 102430250, 163888400, 204860500, 409721000, 819442000]

約数ペア:

[(1, 819442000), (2, 409721000), (4, 204860500), (5, 163888400), (8, 102430250), (10, 81944200), (13, 63034000), (16, 51215125), (20, 40972100), (25, 32777680), (26, 31517000), (40, 20486050), (50, 16388840), (52, 15758500), (65, 12606800), (80, 10243025), (100, 8194420), (104, 7879250), (125, 6555536), (130, 6303400), (200, 4097210), (208, 3939625), (250, 3277768), (260, 3151700), (325, 2521360), (400, 2048605), (500, 1638884), (520, 1575850), (650, 1260680), (1000, 819442), (1040, 787925), (1300, 630340), (1625, 504272), (2000, 409721), (2600, 315170), (3250, 252136), (5200, 157585), (6500, 126068), (13000, 63034), (26000, 31517)]