20264580

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1787}}^1$

素因数の和:1815

約数の個数: 120

約数和(自身を含む): 72692928

約数和(自身を除く): 52428348

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1787, 1890, 2268, 2835, 3574, 3780, 5361, 5670, 7148, 8935, 10722, 11340, 12509, 16083, 17870, 21444, 25018, 26805, 32166, 35740, 37527, 48249, 50036, 53610, 62545, 64332, 75054, 80415, 96498, 107220, 112581, 125090, 144747, 150108, 160830, 187635, 192996, 225162, 241245, 250180, 289494, 321660, 337743, 375270, 450324, 482490, 562905, 578988, 675486, 723735, 750540, 964980, 1013229, 1125810, 1350972, 1447470, 1688715, 2026458, 2251620, 2894940, 3377430, 4052916, 5066145, 6754860, 10132290, 20264580]

約数ペア:

[(1, 20264580), (2, 10132290), (3, 6754860), (4, 5066145), (5, 4052916), (6, 3377430), (7, 2894940), (9, 2251620), (10, 2026458), (12, 1688715), (14, 1447470), (15, 1350972), (18, 1125810), (20, 1013229), (21, 964980), (27, 750540), (28, 723735), (30, 675486), (35, 578988), (36, 562905), (42, 482490), (45, 450324), (54, 375270), (60, 337743), (63, 321660), (70, 289494), (81, 250180), (84, 241245), (90, 225162), (105, 192996), (108, 187635), (126, 160830), (135, 150108), (140, 144747), (162, 125090), (180, 112581), (189, 107220), (210, 96498), (252, 80415), (270, 75054), (315, 64332), (324, 62545), (378, 53610), (405, 50036), (420, 48249), (540, 37527), (567, 35740), (630, 32166), (756, 26805), (810, 25018), (945, 21444), (1134, 17870), (1260, 16083), (1620, 12509), (1787, 11340), (1890, 10722), (2268, 8935), (2835, 7148), (3574, 5670), (3780, 5361)]