17930390020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{312703}}^1$

素因数の和:312820

約数の個数: 48

約数和(自身を含む): 39085498368

約数和(自身を除く): 21155108348

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 188, 235, 244, 305, 470, 610, 940, 1220, 2867, 5734, 11468, 14335, 28670, 57340, 312703, 625406, 1250812, 1563515, 3127030, 6254060, 14697041, 19074883, 29394082, 38149766, 58788164, 73485205, 76299532, 95374415, 146970410, 190748830, 293940820, 381497660, 896519501, 1793039002, 3586078004, 4482597505, 8965195010, 17930390020]

約数ペア:

[(1, 17930390020), (2, 8965195010), (4, 4482597505), (5, 3586078004), (10, 1793039002), (20, 896519501), (47, 381497660), (61, 293940820), (94, 190748830), (122, 146970410), (188, 95374415), (235, 76299532), (244, 73485205), (305, 58788164), (470, 38149766), (610, 29394082), (940, 19074883), (1220, 14697041), (2867, 6254060), (5734, 3127030), (11468, 1563515), (14335, 1250812), (28670, 625406), (57340, 312703)]