78001840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7331}}^1$

素因数の和:7370

約数の個数: 80

約数和(自身を含む): 218200320

約数和(自身を除く): 140198480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 7331, 10640, 14662, 29324, 36655, 51317, 58648, 73310, 102634, 117296, 139289, 146620, 205268, 256585, 278578, 293240, 410536, 513170, 557156, 586480, 696445, 821072, 975023, 1026340, 1114312, 1392890, 1950046, 2052680, 2228624, 2785780, 3900092, 4105360, 4875115, 5571560, 7800184, 9750230, 11143120, 15600368, 19500460, 39000920, 78001840]

約数ペア:

[(1, 78001840), (2, 39000920), (4, 19500460), (5, 15600368), (7, 11143120), (8, 9750230), (10, 7800184), (14, 5571560), (16, 4875115), (19, 4105360), (20, 3900092), (28, 2785780), (35, 2228624), (38, 2052680), (40, 1950046), (56, 1392890), (70, 1114312), (76, 1026340), (80, 975023), (95, 821072), (112, 696445), (133, 586480), (140, 557156), (152, 513170), (190, 410536), (266, 293240), (280, 278578), (304, 256585), (380, 205268), (532, 146620), (560, 139289), (665, 117296), (760, 102634), (1064, 73310), (1330, 58648), (1520, 51317), (2128, 36655), (2660, 29324), (5320, 14662), (7331, 10640)]