20123016470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{26261}}^1$

素因数の和:26433

約数の個数: 64

約数和(自身を含む): 39519057600

約数和(自身を除く): 19396041130

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 109, 185, 190, 218, 370, 545, 703, 1090, 1406, 2071, 3515, 4033, 4142, 7030, 8066, 10355, 20165, 20710, 26261, 40330, 52522, 76627, 131305, 153254, 262610, 383135, 498959, 766270, 971657, 997918, 1943314, 2494795, 2862449, 4858285, 4989590, 5724898, 9716570, 14312245, 18461483, 28624490, 36922966, 54386531, 92307415, 105910613, 108773062, 184614830, 211821226, 271932655, 529553065, 543865310, 1059106130, 2012301647, 4024603294, 10061508235, 20123016470]

約数ペア:

[(1, 20123016470), (2, 10061508235), (5, 4024603294), (10, 2012301647), (19, 1059106130), (37, 543865310), (38, 529553065), (74, 271932655), (95, 211821226), (109, 184614830), (185, 108773062), (190, 105910613), (218, 92307415), (370, 54386531), (545, 36922966), (703, 28624490), (1090, 18461483), (1406, 14312245), (2071, 9716570), (3515, 5724898), (4033, 4989590), (4142, 4858285), (7030, 2862449), (8066, 2494795), (10355, 1943314), (20165, 997918), (20710, 971657), (26261, 766270), (40330, 498959), (52522, 383135), (76627, 262610), (131305, 153254)]