20176904900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{18757}}^1$

素因数の和:19149

約数の個数: 72

約数和(自身を含む): 45328932096

約数和(自身を除く): 25152027196

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 347, 620, 694, 775, 1388, 1550, 1735, 3100, 3470, 6940, 8675, 10757, 17350, 18757, 21514, 34700, 37514, 43028, 53785, 75028, 93785, 107570, 187570, 215140, 268925, 375140, 468925, 537850, 581467, 937850, 1075700, 1162934, 1875700, 2325868, 2907335, 5814670, 6508679, 11629340, 13017358, 14536675, 26034716, 29073350, 32543395, 58146700, 65086790, 130173580, 162716975, 201769049, 325433950, 403538098, 650867900, 807076196, 1008845245, 2017690490, 4035380980, 5044226225, 10088452450, 20176904900]

約数ペア:

[(1, 20176904900), (2, 10088452450), (4, 5044226225), (5, 4035380980), (10, 2017690490), (20, 1008845245), (25, 807076196), (31, 650867900), (50, 403538098), (62, 325433950), (100, 201769049), (124, 162716975), (155, 130173580), (310, 65086790), (347, 58146700), (620, 32543395), (694, 29073350), (775, 26034716), (1388, 14536675), (1550, 13017358), (1735, 11629340), (3100, 6508679), (3470, 5814670), (6940, 2907335), (8675, 2325868), (10757, 1875700), (17350, 1162934), (18757, 1075700), (21514, 937850), (34700, 581467), (37514, 537850), (43028, 468925), (53785, 375140), (75028, 268925), (93785, 215140), (107570, 187570)]