400277920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21023}}^1$

素因数の和:21062

約数の個数: 96

約数和(自身を含む): 1144378368

約数和(自身を除く): 744100448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1120, 1190, 1360, 1904, 2380, 2720, 3808, 4760, 9520, 19040, 21023, 42046, 84092, 105115, 147161, 168184, 210230, 294322, 336368, 357391, 420460, 588644, 672736, 714782, 735805, 840920, 1177288, 1429564, 1471610, 1681840, 1786955, 2354576, 2501737, 2859128, 2943220, 3363680, 3573910, 4709152, 5003474, 5718256, 5886440, 7147820, 10006948, 11436512, 11772880, 12508685, 14295640, 20013896, 23545760, 25017370, 28591280, 40027792, 50034740, 57182560, 80055584, 100069480, 200138960, 400277920]

約数ペア:

[(1, 400277920), (2, 200138960), (4, 100069480), (5, 80055584), (7, 57182560), (8, 50034740), (10, 40027792), (14, 28591280), (16, 25017370), (17, 23545760), (20, 20013896), (28, 14295640), (32, 12508685), (34, 11772880), (35, 11436512), (40, 10006948), (56, 7147820), (68, 5886440), (70, 5718256), (80, 5003474), (85, 4709152), (112, 3573910), (119, 3363680), (136, 2943220), (140, 2859128), (160, 2501737), (170, 2354576), (224, 1786955), (238, 1681840), (272, 1471610), (280, 1429564), (340, 1177288), (476, 840920), (544, 735805), (560, 714782), (595, 672736), (680, 588644), (952, 420460), (1120, 357391), (1190, 336368), (1360, 294322), (1904, 210230), (2380, 168184), (2720, 147161), (3808, 105115), (4760, 84092), (9520, 42046), (19040, 21023)]