20616050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 49496832

約数和(自身を除く): 28880782

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 25, 26, 35, 46, 50, 65, 70, 91, 115, 130, 161, 175, 182, 197, 230, 299, 322, 325, 350, 394, 455, 575, 598, 650, 805, 910, 985, 1150, 1379, 1495, 1610, 1970, 2093, 2275, 2561, 2758, 2990, 4025, 4186, 4531, 4550, 4925, 5122, 6895, 7475, 8050, 9062, 9850, 10465, 12805, 13790, 14950, 17927, 20930, 22655, 25610, 31717, 34475, 35854, 45310, 52325, 58903, 63434, 64025, 68950, 89635, 104650, 113275, 117806, 128050, 158585, 179270, 226550, 294515, 317170, 412321, 448175, 589030, 792925, 824642, 896350, 1472575, 1585850, 2061605, 2945150, 4123210, 10308025, 20616050]

約数ペア:

[(1, 20616050), (2, 10308025), (5, 4123210), (7, 2945150), (10, 2061605), (13, 1585850), (14, 1472575), (23, 896350), (25, 824642), (26, 792925), (35, 589030), (46, 448175), (50, 412321), (65, 317170), (70, 294515), (91, 226550), (115, 179270), (130, 158585), (161, 128050), (175, 117806), (182, 113275), (197, 104650), (230, 89635), (299, 68950), (322, 64025), (325, 63434), (350, 58903), (394, 52325), (455, 45310), (575, 35854), (598, 34475), (650, 31717), (805, 25610), (910, 22655), (985, 20930), (1150, 17927), (1379, 14950), (1495, 13790), (1610, 12805), (1970, 10465), (2093, 9850), (2275, 9062), (2561, 8050), (2758, 7475), (2990, 6895), (4025, 5122), (4186, 4925), (4531, 4550)]