39960220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 86220288

約数和(自身を除く): 46260068

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 142, 214, 263, 284, 355, 428, 526, 535, 710, 1052, 1070, 1315, 1420, 2140, 2630, 5260, 7597, 15194, 18673, 28141, 30388, 37346, 37985, 56282, 74692, 75970, 93365, 112564, 140705, 151940, 186730, 281410, 373460, 562820, 1998011, 3996022, 7992044, 9990055, 19980110, 39960220]

約数ペア:

[(1, 39960220), (2, 19980110), (4, 9990055), (5, 7992044), (10, 3996022), (20, 1998011), (71, 562820), (107, 373460), (142, 281410), (214, 186730), (263, 151940), (284, 140705), (355, 112564), (428, 93365), (526, 75970), (535, 74692), (710, 56282), (1052, 37985), (1070, 37346), (1315, 30388), (1420, 28141), (2140, 18673), (2630, 15194), (5260, 7597)]