20121691384

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{7243}}^1$

素因数の和:7460

約数の個数: 64

約数和(自身を含む): 39367952640

約数和(自身を除く): 19246261256

約数列:

[1, 2, 4, 8, 67, 71, 73, 134, 142, 146, 268, 284, 292, 536, 568, 584, 4757, 4891, 5183, 7243, 9514, 9782, 10366, 14486, 19028, 19564, 20732, 28972, 38056, 39128, 41464, 57944, 347261, 485281, 514253, 528739, 694522, 970562, 1028506, 1057478, 1389044, 1941124, 2057012, 2114956, 2778088, 3882248, 4114024, 4229912, 34454951, 35425513, 37540469, 68909902, 70851026, 75080938, 137819804, 141702052, 150161876, 275639608, 283404104, 300323752, 2515211423, 5030422846, 10060845692, 20121691384]

約数ペア:

[(1, 20121691384), (2, 10060845692), (4, 5030422846), (8, 2515211423), (67, 300323752), (71, 283404104), (73, 275639608), (134, 150161876), (142, 141702052), (146, 137819804), (268, 75080938), (284, 70851026), (292, 68909902), (536, 37540469), (568, 35425513), (584, 34454951), (4757, 4229912), (4891, 4114024), (5183, 3882248), (7243, 2778088), (9514, 2114956), (9782, 2057012), (10366, 1941124), (14486, 1389044), (19028, 1057478), (19564, 1028506), (20732, 970562), (28972, 694522), (38056, 528739), (39128, 514253), (41464, 485281), (57944, 347261)]