18861310720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{3739}}^1$

素因数の和:4330

約数の個数: 144

約数和(自身を含む): 51738382080

約数和(自身を除く): 32877071360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 563, 640, 896, 1120, 1126, 1280, 1792, 2240, 2252, 2815, 3739, 3941, 4480, 4504, 5630, 7478, 7882, 8960, 9008, 11260, 14956, 15764, 18016, 18695, 19705, 22520, 26173, 29912, 31528, 36032, 37390, 39410, 45040, 52346, 59824, 63056, 72064, 74780, 78820, 90080, 104692, 119648, 126112, 130865, 144128, 149560, 157640, 180160, 209384, 239296, 252224, 261730, 299120, 315280, 360320, 418768, 478592, 504448, 523460, 598240, 630560, 720640, 837536, 957184, 1008896, 1046920, 1196480, 1261120, 1675072, 2093840, 2105057, 2392960, 2522240, 3350144, 4187680, 4210114, 4785920, 5044480, 6700288, 8375360, 8420228, 10525285, 14735399, 16750720, 16840456, 21050570, 29470798, 33501440, 33680912, 42101140, 58941596, 67361824, 73676995, 84202280, 117883192, 134723648, 147353990, 168404560, 235766384, 269447296, 294707980, 336809120, 471532768, 538894592, 589415960, 673618240, 943065536, 1178831920, 1347236480, 1886131072, 2357663840, 2694472960, 3772262144, 4715327680, 9430655360, 18861310720]

約数ペア:

[(1, 18861310720), (2, 9430655360), (4, 4715327680), (5, 3772262144), (7, 2694472960), (8, 2357663840), (10, 1886131072), (14, 1347236480), (16, 1178831920), (20, 943065536), (28, 673618240), (32, 589415960), (35, 538894592), (40, 471532768), (56, 336809120), (64, 294707980), (70, 269447296), (80, 235766384), (112, 168404560), (128, 147353990), (140, 134723648), (160, 117883192), (224, 84202280), (256, 73676995), (280, 67361824), (320, 58941596), (448, 42101140), (560, 33680912), (563, 33501440), (640, 29470798), (896, 21050570), (1120, 16840456), (1126, 16750720), (1280, 14735399), (1792, 10525285), (2240, 8420228), (2252, 8375360), (2815, 6700288), (3739, 5044480), (3941, 4785920), (4480, 4210114), (4504, 4187680), (5630, 3350144), (7478, 2522240), (7882, 2392960), (8960, 2105057), (9008, 2093840), (11260, 1675072), (14956, 1261120), (15764, 1196480), (18016, 1046920), (18695, 1008896), (19705, 957184), (22520, 837536), (26173, 720640), (29912, 630560), (31528, 598240), (36032, 523460), (37390, 504448), (39410, 478592), (45040, 418768), (52346, 360320), (59824, 315280), (63056, 299120), (72064, 261730), (74780, 252224), (78820, 239296), (90080, 209384), (104692, 180160), (119648, 157640), (126112, 149560), (130865, 144128)]