195400520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9829}}^1$

素因数の和:9918

約数の個数: 64

約数和(自身を含む): 509587200

約数和(自身を除く): 314186680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9829, 9940, 19658, 19880, 39316, 49145, 68803, 78632, 98290, 137606, 196580, 275212, 344015, 393160, 550424, 688030, 697859, 1376060, 1395718, 2752120, 2791436, 3489295, 4885013, 5582872, 6978590, 9770026, 13957180, 19540052, 24425065, 27914360, 39080104, 48850130, 97700260, 195400520]

約数ペア:

[(1, 195400520), (2, 97700260), (4, 48850130), (5, 39080104), (7, 27914360), (8, 24425065), (10, 19540052), (14, 13957180), (20, 9770026), (28, 6978590), (35, 5582872), (40, 4885013), (56, 3489295), (70, 2791436), (71, 2752120), (140, 1395718), (142, 1376060), (280, 697859), (284, 688030), (355, 550424), (497, 393160), (568, 344015), (710, 275212), (994, 196580), (1420, 137606), (1988, 98290), (2485, 78632), (2840, 68803), (3976, 49145), (4970, 39316), (9829, 19880), (9940, 19658)]