81728288

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 165223800

約数和(自身を除く): 83495512

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 149, 244, 281, 298, 488, 562, 596, 976, 1124, 1192, 1952, 2248, 2384, 4496, 4768, 8992, 9089, 17141, 18178, 34282, 36356, 41869, 68564, 72712, 83738, 137128, 145424, 167476, 274256, 290848, 334952, 548512, 669904, 1339808, 2554009, 5108018, 10216036, 20432072, 40864144, 81728288]

約数ペア:

[(1, 81728288), (2, 40864144), (4, 20432072), (8, 10216036), (16, 5108018), (32, 2554009), (61, 1339808), (122, 669904), (149, 548512), (244, 334952), (281, 290848), (298, 274256), (488, 167476), (562, 145424), (596, 137128), (976, 83738), (1124, 72712), (1192, 68564), (1952, 41869), (2248, 36356), (2384, 34282), (4496, 18178), (4768, 17141), (8992, 9089)]