20164162528

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{123289}}^1$

素因数の和:123587

約数の個数: 48

約数和(自身を含む): 41943258000

約数和(自身を除く): 21779095472

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 269, 304, 538, 608, 1076, 2152, 4304, 5111, 8608, 10222, 20444, 40888, 81776, 123289, 163552, 246578, 493156, 986312, 1972624, 2342491, 3945248, 4684982, 9369964, 18739928, 33164741, 37479856, 66329482, 74959712, 132658964, 265317928, 530635856, 630130079, 1061271712, 1260260158, 2520520316, 5041040632, 10082081264, 20164162528]

約数ペア:

[(1, 20164162528), (2, 10082081264), (4, 5041040632), (8, 2520520316), (16, 1260260158), (19, 1061271712), (32, 630130079), (38, 530635856), (76, 265317928), (152, 132658964), (269, 74959712), (304, 66329482), (538, 37479856), (608, 33164741), (1076, 18739928), (2152, 9369964), (4304, 4684982), (5111, 3945248), (8608, 2342491), (10222, 1972624), (20444, 986312), (40888, 493156), (81776, 246578), (123289, 163552)]