81665040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17909}}^1$

素因数の和:17944

約数の個数: 80

約数和(自身を含む): 266500800

約数和(自身を除く): 184835760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17909, 35818, 53727, 71636, 89545, 107454, 143272, 179090, 214908, 268635, 286544, 340271, 358180, 429816, 537270, 680542, 716360, 859632, 1020813, 1074540, 1361084, 1432720, 1701355, 2041626, 2149080, 2722168, 3402710, 4083252, 4298160, 5104065, 5444336, 6805420, 8166504, 10208130, 13610840, 16333008, 20416260, 27221680, 40832520, 81665040]

約数ペア:

[(1, 81665040), (2, 40832520), (3, 27221680), (4, 20416260), (5, 16333008), (6, 13610840), (8, 10208130), (10, 8166504), (12, 6805420), (15, 5444336), (16, 5104065), (19, 4298160), (20, 4083252), (24, 3402710), (30, 2722168), (38, 2149080), (40, 2041626), (48, 1701355), (57, 1432720), (60, 1361084), (76, 1074540), (80, 1020813), (95, 859632), (114, 716360), (120, 680542), (152, 537270), (190, 429816), (228, 358180), (240, 340271), (285, 286544), (304, 268635), (380, 214908), (456, 179090), (570, 143272), (760, 107454), (912, 89545), (1140, 71636), (1520, 53727), (2280, 35818), (4560, 17909)]