400171920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:853

約数の個数: 160

約数和(自身を含む): 1318010880

約数和(自身を除く): 917838960

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, 127, 152, 190, 228, 240, 254, 285, 304, 380, 381, 456, 508, 570, 635, 691, 760, 762, 912, 1016, 1140, 1270, 1382, 1520, 1524, 1905, 2032, 2073, 2280, 2413, 2540, 2764, 3048, 3455, 3810, 4146, 4560, 4826, 5080, 5528, 6096, 6910, 7239, 7620, 8292, 9652, 10160, 10365, 11056, 12065, 13129, 13820, 14478, 15240, 16584, 19304, 20730, 24130, 26258, 27640, 28956, 30480, 33168, 36195, 38608, 39387, 41460, 48260, 52516, 55280, 57912, 65645, 72390, 78774, 82920, 87757, 96520, 105032, 115824, 131290, 144780, 157548, 165840, 175514, 193040, 196935, 210064, 262580, 263271, 289560, 315096, 351028, 393870, 438785, 525160, 526542, 579120, 630192, 702056, 787740, 877570, 1050320, 1053084, 1316355, 1404112, 1575480, 1667383, 1755140, 2106168, 2632710, 3150960, 3334766, 3510280, 4212336, 5002149, 5265420, 6669532, 7020560, 8336915, 10004298, 10530840, 13339064, 16673830, 20008596, 21061680, 25010745, 26678128, 33347660, 40017192, 50021490, 66695320, 80034384, 100042980, 133390640, 200085960, 400171920]

約数ペア:

[(1, 400171920), (2, 200085960), (3, 133390640), (4, 100042980), (5, 80034384), (6, 66695320), (8, 50021490), (10, 40017192), (12, 33347660), (15, 26678128), (16, 25010745), (19, 21061680), (20, 20008596), (24, 16673830), (30, 13339064), (38, 10530840), (40, 10004298), (48, 8336915), (57, 7020560), (60, 6669532), (76, 5265420), (80, 5002149), (95, 4212336), (114, 3510280), (120, 3334766), (127, 3150960), (152, 2632710), (190, 2106168), (228, 1755140), (240, 1667383), (254, 1575480), (285, 1404112), (304, 1316355), (380, 1053084), (381, 1050320), (456, 877570), (508, 787740), (570, 702056), (635, 630192), (691, 579120), (760, 526542), (762, 525160), (912, 438785), (1016, 393870), (1140, 351028), (1270, 315096), (1382, 289560), (1520, 263271), (1524, 262580), (1905, 210064), (2032, 196935), (2073, 193040), (2280, 175514), (2413, 165840), (2540, 157548), (2764, 144780), (3048, 131290), (3455, 115824), (3810, 105032), (4146, 96520), (4560, 87757), (4826, 82920), (5080, 78774), (5528, 72390), (6096, 65645), (6910, 57912), (7239, 55280), (7620, 52516), (8292, 48260), (9652, 41460), (10160, 39387), (10365, 38608), (11056, 36195), (12065, 33168), (13129, 30480), (13820, 28956), (14478, 27640), (15240, 26258), (16584, 24130), (19304, 20730)]