84577720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2039}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 204897600

約数和(自身を除く): 120319880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 1037, 1220, 2039, 2074, 2440, 4078, 4148, 5185, 8156, 8296, 10195, 10370, 16312, 20390, 20740, 34663, 40780, 41480, 69326, 81560, 124379, 138652, 173315, 248758, 277304, 346630, 497516, 621895, 693260, 995032, 1243790, 1386520, 2114443, 2487580, 4228886, 4975160, 8457772, 10572215, 16915544, 21144430, 42288860, 84577720]

約数ペア:

[(1, 84577720), (2, 42288860), (4, 21144430), (5, 16915544), (8, 10572215), (10, 8457772), (17, 4975160), (20, 4228886), (34, 2487580), (40, 2114443), (61, 1386520), (68, 1243790), (85, 995032), (122, 693260), (136, 621895), (170, 497516), (244, 346630), (305, 277304), (340, 248758), (488, 173315), (610, 138652), (680, 124379), (1037, 81560), (1220, 69326), (2039, 41480), (2074, 40780), (2440, 34663), (4078, 20740), (4148, 20390), (5185, 16312), (8156, 10370), (8296, 10195)]