204745280

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:712

約数の個数: 112

約数和(自身を含む): 525542256

約数和(自身を除く): 320796976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 64, 68, 80, 85, 122, 136, 160, 170, 244, 272, 305, 320, 340, 488, 544, 610, 617, 680, 976, 1037, 1088, 1220, 1234, 1360, 1952, 2074, 2440, 2468, 2720, 3085, 3904, 4148, 4880, 4936, 5185, 5440, 6170, 8296, 9760, 9872, 10370, 10489, 12340, 16592, 19520, 19744, 20740, 20978, 24680, 33184, 37637, 39488, 41480, 41956, 49360, 52445, 66368, 75274, 82960, 83912, 98720, 104890, 150548, 165920, 167824, 188185, 197440, 209780, 301096, 331840, 335648, 376370, 419560, 602192, 639829, 671296, 752740, 839120, 1204384, 1279658, 1505480, 1678240, 2408768, 2559316, 3010960, 3199145, 3356480, 5118632, 6021920, 6398290, 10237264, 12043840, 12796580, 20474528, 25593160, 40949056, 51186320, 102372640, 204745280]

約数ペア:

[(1, 204745280), (2, 102372640), (4, 51186320), (5, 40949056), (8, 25593160), (10, 20474528), (16, 12796580), (17, 12043840), (20, 10237264), (32, 6398290), (34, 6021920), (40, 5118632), (61, 3356480), (64, 3199145), (68, 3010960), (80, 2559316), (85, 2408768), (122, 1678240), (136, 1505480), (160, 1279658), (170, 1204384), (244, 839120), (272, 752740), (305, 671296), (320, 639829), (340, 602192), (488, 419560), (544, 376370), (610, 335648), (617, 331840), (680, 301096), (976, 209780), (1037, 197440), (1088, 188185), (1220, 167824), (1234, 165920), (1360, 150548), (1952, 104890), (2074, 98720), (2440, 83912), (2468, 82960), (2720, 75274), (3085, 66368), (3904, 52445), (4148, 49360), (4880, 41956), (4936, 41480), (5185, 39488), (5440, 37637), (6170, 33184), (8296, 24680), (9760, 20978), (9872, 20740), (10370, 19744), (10489, 19520), (12340, 16592)]