180720512

素因数分解:

$2^7\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2119

約数の個数: 64

約数和(自身を含む): 415743840

約数和(自身を除く): 235023328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 404, 448, 707, 808, 896, 1414, 1616, 1997, 2828, 3232, 3994, 5656, 6464, 7988, 11312, 12928, 13979, 15976, 22624, 27958, 31952, 45248, 55916, 63904, 90496, 111832, 127808, 201697, 223664, 255616, 403394, 447328, 806788, 894656, 1411879, 1613576, 1789312, 2823758, 3227152, 5647516, 6454304, 11295032, 12908608, 22590064, 25817216, 45180128, 90360256, 180720512]

約数ペア:

[(1, 180720512), (2, 90360256), (4, 45180128), (7, 25817216), (8, 22590064), (14, 12908608), (16, 11295032), (28, 6454304), (32, 5647516), (56, 3227152), (64, 2823758), (101, 1789312), (112, 1613576), (128, 1411879), (202, 894656), (224, 806788), (404, 447328), (448, 403394), (707, 255616), (808, 223664), (896, 201697), (1414, 127808), (1616, 111832), (1997, 90496), (2828, 63904), (3232, 55916), (3994, 45248), (5656, 31952), (6464, 27958), (7988, 22624), (11312, 15976), (12928, 13979)]