78878940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1723}}^1$

素因数の和:1851

約数の個数: 96

約数和(自身を含む): 254876160

約数和(自身を除く): 175997220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 545, 654, 763, 1090, 1308, 1526, 1635, 1723, 2180, 2289, 3052, 3270, 3446, 3815, 4578, 5169, 6540, 6892, 7630, 8615, 9156, 10338, 11445, 12061, 15260, 17230, 20676, 22890, 24122, 25845, 34460, 36183, 45780, 48244, 51690, 60305, 72366, 103380, 120610, 144732, 180915, 187807, 241220, 361830, 375614, 563421, 723660, 751228, 939035, 1126842, 1314649, 1878070, 2253684, 2629298, 2817105, 3756140, 3943947, 5258596, 5634210, 6573245, 7887894, 11268420, 13146490, 15775788, 19719735, 26292980, 39439470, 78878940]

約数ペア:

[(1, 78878940), (2, 39439470), (3, 26292980), (4, 19719735), (5, 15775788), (6, 13146490), (7, 11268420), (10, 7887894), (12, 6573245), (14, 5634210), (15, 5258596), (20, 3943947), (21, 3756140), (28, 2817105), (30, 2629298), (35, 2253684), (42, 1878070), (60, 1314649), (70, 1126842), (84, 939035), (105, 751228), (109, 723660), (140, 563421), (210, 375614), (218, 361830), (327, 241220), (420, 187807), (436, 180915), (545, 144732), (654, 120610), (763, 103380), (1090, 72366), (1308, 60305), (1526, 51690), (1635, 48244), (1723, 45780), (2180, 36183), (2289, 34460), (3052, 25845), (3270, 24122), (3446, 22890), (3815, 20676), (4578, 17230), (5169, 15260), (6540, 12061), (6892, 11445), (7630, 10338), (8615, 9156)]