919003820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{683}}^1\times {\mathrm{1373}}^1$

素因数の和:2079

約数の個数: 72

約数和(自身を含む): 2249919504

約数和(自身を除く): 1330915684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 683, 980, 1366, 1373, 2732, 2746, 3415, 4781, 5492, 6830, 6865, 9562, 9611, 13660, 13730, 19124, 19222, 23905, 27460, 33467, 38444, 47810, 48055, 66934, 67277, 95620, 96110, 133868, 134554, 167335, 192220, 269108, 334670, 336385, 669340, 672770, 937759, 1345540, 1875518, 3751036, 4688795, 6564313, 9377590, 13128626, 18755180, 26257252, 32821565, 45950191, 65643130, 91900382, 131286260, 183800764, 229750955, 459501910, 919003820]

約数ペア:

[(1, 919003820), (2, 459501910), (4, 229750955), (5, 183800764), (7, 131286260), (10, 91900382), (14, 65643130), (20, 45950191), (28, 32821565), (35, 26257252), (49, 18755180), (70, 13128626), (98, 9377590), (140, 6564313), (196, 4688795), (245, 3751036), (490, 1875518), (683, 1345540), (980, 937759), (1366, 672770), (1373, 669340), (2732, 336385), (2746, 334670), (3415, 269108), (4781, 192220), (5492, 167335), (6830, 134554), (6865, 133868), (9562, 96110), (9611, 95620), (13660, 67277), (13730, 66934), (19124, 48055), (19222, 47810), (23905, 38444), (27460, 33467)]