20213320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27894200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 127, 173, 184, 230, 254, 346, 460, 508, 635, 692, 865, 920, 1016, 1270, 1384, 1730, 2540, 2921, 3460, 3979, 5080, 5842, 6920, 7958, 11684, 14605, 15916, 19895, 21971, 23368, 29210, 31832, 39790, 43942, 58420, 79580, 87884, 109855, 116840, 159160, 175768, 219710, 439420, 505333, 878840, 1010666, 2021332, 2526665, 4042664, 5053330, 10106660, 20213320]

約数ペア:

[(1, 20213320), (2, 10106660), (4, 5053330), (5, 4042664), (8, 2526665), (10, 2021332), (20, 1010666), (23, 878840), (40, 505333), (46, 439420), (92, 219710), (115, 175768), (127, 159160), (173, 116840), (184, 109855), (230, 87884), (254, 79580), (346, 58420), (460, 43942), (508, 39790), (635, 31832), (692, 29210), (865, 23368), (920, 21971), (1016, 19895), (1270, 15916), (1384, 14605), (1730, 11684), (2540, 7958), (2921, 6920), (3460, 5842), (3979, 5080)]