81221216

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:607

約数の個数: 48

約数和(自身を含む): 165569040

約数和(自身を除く): 84347824

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 148, 181, 296, 362, 379, 592, 724, 758, 1184, 1448, 1516, 2896, 3032, 5792, 6064, 6697, 12128, 13394, 14023, 26788, 28046, 53576, 56092, 68599, 107152, 112184, 137198, 214304, 224368, 274396, 448736, 548792, 1097584, 2195168, 2538163, 5076326, 10152652, 20305304, 40610608, 81221216]

約数ペア:

[(1, 81221216), (2, 40610608), (4, 20305304), (8, 10152652), (16, 5076326), (32, 2538163), (37, 2195168), (74, 1097584), (148, 548792), (181, 448736), (296, 274396), (362, 224368), (379, 214304), (592, 137198), (724, 112184), (758, 107152), (1184, 68599), (1448, 56092), (1516, 53576), (2896, 28046), (3032, 26788), (5792, 14023), (6064, 13394), (6697, 12128)]