18961760

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3203}}^1$

素因数の和:3255

約数の個数: 48

約数和(自身を含む): 46022256

約数和(自身を除く): 27060496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3203, 5920, 6406, 12812, 16015, 25624, 32030, 51248, 64060, 102496, 118511, 128120, 237022, 256240, 474044, 512480, 592555, 948088, 1185110, 1896176, 2370220, 3792352, 4740440, 9480880, 18961760]

約数ペア:

[(1, 18961760), (2, 9480880), (4, 4740440), (5, 3792352), (8, 2370220), (10, 1896176), (16, 1185110), (20, 948088), (32, 592555), (37, 512480), (40, 474044), (74, 256240), (80, 237022), (148, 128120), (160, 118511), (185, 102496), (296, 64060), (370, 51248), (592, 32030), (740, 25624), (1184, 16015), (1480, 12812), (2960, 6406), (3203, 5920)]