40781980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 97977600

約数和(自身を除く): 57195620

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 59, 68, 76, 85, 95, 107, 118, 170, 190, 214, 236, 295, 323, 340, 380, 428, 535, 590, 646, 1003, 1070, 1121, 1180, 1292, 1615, 1819, 2006, 2033, 2140, 2242, 3230, 3638, 4012, 4066, 4484, 5015, 5605, 6313, 6460, 7276, 8132, 9095, 10030, 10165, 11210, 12626, 18190, 19057, 20060, 20330, 22420, 25252, 31565, 34561, 36380, 38114, 40660, 63130, 69122, 76228, 95285, 107321, 119947, 126260, 138244, 172805, 190570, 214642, 239894, 345610, 381140, 429284, 479788, 536605, 599735, 691220, 1073210, 1199470, 2039099, 2146420, 2398940, 4078198, 8156396, 10195495, 20390990, 40781980]

約数ペア:

[(1, 40781980), (2, 20390990), (4, 10195495), (5, 8156396), (10, 4078198), (17, 2398940), (19, 2146420), (20, 2039099), (34, 1199470), (38, 1073210), (59, 691220), (68, 599735), (76, 536605), (85, 479788), (95, 429284), (107, 381140), (118, 345610), (170, 239894), (190, 214642), (214, 190570), (236, 172805), (295, 138244), (323, 126260), (340, 119947), (380, 107321), (428, 95285), (535, 76228), (590, 69122), (646, 63130), (1003, 40660), (1070, 38114), (1121, 36380), (1180, 34561), (1292, 31565), (1615, 25252), (1819, 22420), (2006, 20330), (2033, 20060), (2140, 19057), (2242, 18190), (3230, 12626), (3638, 11210), (4012, 10165), (4066, 10030), (4484, 9095), (5015, 8132), (5605, 7276), (6313, 6460)]