78213800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 221369760

約数和(自身を除く): 143155960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 92, 98, 100, 115, 140, 161, 175, 184, 196, 200, 230, 245, 280, 322, 347, 350, 392, 460, 490, 575, 644, 694, 700, 805, 920, 980, 1127, 1150, 1225, 1288, 1388, 1400, 1610, 1735, 1960, 2254, 2300, 2429, 2450, 2776, 3220, 3470, 4025, 4508, 4600, 4858, 4900, 5635, 6440, 6940, 7981, 8050, 8675, 9016, 9716, 9800, 11270, 12145, 13880, 15962, 16100, 17003, 17350, 19432, 22540, 24290, 28175, 31924, 32200, 34006, 34700, 39905, 45080, 48580, 55867, 56350, 60725, 63848, 68012, 69400, 79810, 85015, 97160, 111734, 112700, 121450, 136024, 159620, 170030, 199525, 223468, 225400, 242900, 279335, 319240, 340060, 391069, 399050, 425075, 446936, 485800, 558670, 680120, 782138, 798100, 850150, 1117340, 1396675, 1564276, 1596200, 1700300, 1955345, 2234680, 2793350, 3128552, 3400600, 3910690, 5586700, 7821380, 9776725, 11173400, 15642760, 19553450, 39106900, 78213800]

約数ペア:

[(1, 78213800), (2, 39106900), (4, 19553450), (5, 15642760), (7, 11173400), (8, 9776725), (10, 7821380), (14, 5586700), (20, 3910690), (23, 3400600), (25, 3128552), (28, 2793350), (35, 2234680), (40, 1955345), (46, 1700300), (49, 1596200), (50, 1564276), (56, 1396675), (70, 1117340), (92, 850150), (98, 798100), (100, 782138), (115, 680120), (140, 558670), (161, 485800), (175, 446936), (184, 425075), (196, 399050), (200, 391069), (230, 340060), (245, 319240), (280, 279335), (322, 242900), (347, 225400), (350, 223468), (392, 199525), (460, 170030), (490, 159620), (575, 136024), (644, 121450), (694, 112700), (700, 111734), (805, 97160), (920, 85015), (980, 79810), (1127, 69400), (1150, 68012), (1225, 63848), (1288, 60725), (1388, 56350), (1400, 55867), (1610, 48580), (1735, 45080), (1960, 39905), (2254, 34700), (2300, 34006), (2429, 32200), (2450, 31924), (2776, 28175), (3220, 24290), (3470, 22540), (4025, 19432), (4508, 17350), (4600, 17003), (4858, 16100), (4900, 15962), (5635, 13880), (6440, 12145), (6940, 11270), (7981, 9800), (8050, 9716), (8675, 9016)]