201565420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2311}}^1$

素因数の和:2423

約数の個数: 72

約数和(自身を含む): 498143520

約数和(自身を除く): 296578100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2311, 2492, 3115, 4361, 4622, 6230, 8722, 9244, 11555, 12460, 16177, 17444, 21805, 23110, 32354, 43610, 46220, 64708, 80885, 87220, 113239, 161770, 205679, 226478, 323540, 411358, 452956, 566195, 822716, 1028395, 1132390, 1439753, 2056790, 2264780, 2879506, 4113580, 5759012, 7198765, 10078271, 14397530, 20156542, 28795060, 40313084, 50391355, 100782710, 201565420]

約数ペア:

[(1, 201565420), (2, 100782710), (4, 50391355), (5, 40313084), (7, 28795060), (10, 20156542), (14, 14397530), (20, 10078271), (28, 7198765), (35, 5759012), (49, 4113580), (70, 2879506), (89, 2264780), (98, 2056790), (140, 1439753), (178, 1132390), (196, 1028395), (245, 822716), (356, 566195), (445, 452956), (490, 411358), (623, 323540), (890, 226478), (980, 205679), (1246, 161770), (1780, 113239), (2311, 87220), (2492, 80885), (3115, 64708), (4361, 46220), (4622, 43610), (6230, 32354), (8722, 23110), (9244, 21805), (11555, 17444), (12460, 16177)]