20180449944

素因数分解:

$2^3\times 3^3\times {\mathrm{1289}}^1\times {\mathrm{72481}}^1$

素因数の和:73785

約数の個数: 64

約数和(自身を含む): 56101068000

約数和(自身を除く): 35920618056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 1289, 2578, 3867, 5156, 7734, 10312, 11601, 15468, 23202, 30936, 34803, 46404, 69606, 72481, 92808, 139212, 144962, 217443, 278424, 289924, 434886, 579848, 652329, 869772, 1304658, 1739544, 1956987, 2609316, 3913974, 5218632, 7827948, 15655896, 93428009, 186856018, 280284027, 373712036, 560568054, 747424072, 840852081, 1121136108, 1681704162, 2242272216, 2522556243, 3363408324, 5045112486, 6726816648, 10090224972, 20180449944]

約数ペア:

[(1, 20180449944), (2, 10090224972), (3, 6726816648), (4, 5045112486), (6, 3363408324), (8, 2522556243), (9, 2242272216), (12, 1681704162), (18, 1121136108), (24, 840852081), (27, 747424072), (36, 560568054), (54, 373712036), (72, 280284027), (108, 186856018), (216, 93428009), (1289, 15655896), (2578, 7827948), (3867, 5218632), (5156, 3913974), (7734, 2609316), (10312, 1956987), (11601, 1739544), (15468, 1304658), (23202, 869772), (30936, 652329), (34803, 579848), (46404, 434886), (69606, 289924), (72481, 278424), (92808, 217443), (139212, 144962)]