20781552144

素因数分解:

$2^4\times 3^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1\times {\mathrm{11321}}^1$

素因数の和:11728

約数の個数: 80

約数和(自身を含む): 54247777920

約数和(自身を除く): 33466225776

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 167, 229, 334, 458, 501, 668, 687, 916, 1002, 1336, 1374, 1832, 2004, 2672, 2748, 3664, 4008, 5496, 8016, 10992, 11321, 22642, 33963, 38243, 45284, 67926, 76486, 90568, 114729, 135852, 152972, 181136, 229458, 271704, 305944, 458916, 543408, 611888, 917832, 1835664, 1890607, 2592509, 3781214, 5185018, 5671821, 7562428, 7777527, 10370036, 11343642, 15124856, 15555054, 20740072, 22687284, 30249712, 31110108, 41480144, 45374568, 62220216, 90749136, 124440432, 432949003, 865898006, 1298847009, 1731796012, 2597694018, 3463592024, 5195388036, 6927184048, 10390776072, 20781552144]

約数ペア:

[(1, 20781552144), (2, 10390776072), (3, 6927184048), (4, 5195388036), (6, 3463592024), (8, 2597694018), (12, 1731796012), (16, 1298847009), (24, 865898006), (48, 432949003), (167, 124440432), (229, 90749136), (334, 62220216), (458, 45374568), (501, 41480144), (668, 31110108), (687, 30249712), (916, 22687284), (1002, 20740072), (1336, 15555054), (1374, 15124856), (1832, 11343642), (2004, 10370036), (2672, 7777527), (2748, 7562428), (3664, 5671821), (4008, 5185018), (5496, 3781214), (8016, 2592509), (10992, 1890607), (11321, 1835664), (22642, 917832), (33963, 611888), (38243, 543408), (45284, 458916), (67926, 305944), (76486, 271704), (90568, 229458), (114729, 181136), (135852, 152972)]