25455920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 68352768

約数和(自身を除く): 42896848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 262, 280, 347, 524, 560, 655, 694, 917, 1048, 1310, 1388, 1735, 1834, 2096, 2429, 2620, 2776, 3470, 3668, 4585, 4858, 5240, 5552, 6940, 7336, 9170, 9716, 10480, 12145, 13880, 14672, 18340, 19432, 24290, 27760, 36680, 38864, 45457, 48580, 73360, 90914, 97160, 181828, 194320, 227285, 318199, 363656, 454570, 636398, 727312, 909140, 1272796, 1590995, 1818280, 2545592, 3181990, 3636560, 5091184, 6363980, 12727960, 25455920]

約数ペア:

[(1, 25455920), (2, 12727960), (4, 6363980), (5, 5091184), (7, 3636560), (8, 3181990), (10, 2545592), (14, 1818280), (16, 1590995), (20, 1272796), (28, 909140), (35, 727312), (40, 636398), (56, 454570), (70, 363656), (80, 318199), (112, 227285), (131, 194320), (140, 181828), (262, 97160), (280, 90914), (347, 73360), (524, 48580), (560, 45457), (655, 38864), (694, 36680), (917, 27760), (1048, 24290), (1310, 19432), (1388, 18340), (1735, 14672), (1834, 13880), (2096, 12145), (2429, 10480), (2620, 9716), (2776, 9170), (3470, 7336), (3668, 6940), (4585, 5552), (4858, 5240)]