20511331330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1\times {\mathrm{3917}}^1$

素因数の和:4483

約数の個数: 64

約数和(自身を含む): 42517509120

約数和(自身を除く): 22006177790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 313, 478, 626, 1195, 1565, 1673, 2191, 2390, 3130, 3346, 3917, 4382, 7834, 8365, 10955, 16730, 19585, 21910, 27419, 39170, 54838, 74807, 137095, 149614, 274190, 374035, 523649, 748070, 936163, 1047298, 1226021, 1872326, 2452042, 2618245, 4680815, 5236490, 6130105, 6553141, 8582147, 9361630, 12260210, 13106282, 17164294, 32765705, 42910735, 65531410, 85821470, 293019019, 586038038, 1465095095, 2051133133, 2930190190, 4102266266, 10255665665, 20511331330]

約数ペア:

[(1, 20511331330), (2, 10255665665), (5, 4102266266), (7, 2930190190), (10, 2051133133), (14, 1465095095), (35, 586038038), (70, 293019019), (239, 85821470), (313, 65531410), (478, 42910735), (626, 32765705), (1195, 17164294), (1565, 13106282), (1673, 12260210), (2191, 9361630), (2390, 8582147), (3130, 6553141), (3346, 6130105), (3917, 5236490), (4382, 4680815), (7834, 2618245), (8365, 2452042), (10955, 1872326), (16730, 1226021), (19585, 1047298), (21910, 936163), (27419, 748070), (39170, 523649), (54838, 374035), (74807, 274190), (137095, 149614)]