201979820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 499903488

約数和(自身を除く): 297923668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 163, 167, 212, 265, 326, 334, 371, 530, 652, 668, 742, 815, 835, 1060, 1141, 1169, 1484, 1630, 1670, 1855, 2282, 2338, 3260, 3340, 3710, 4564, 4676, 5705, 5845, 7420, 8639, 8851, 11410, 11690, 17278, 17702, 22820, 23380, 27221, 34556, 35404, 43195, 44255, 54442, 60473, 61957, 86390, 88510, 108884, 120946, 123914, 136105, 172780, 177020, 190547, 241892, 247828, 272210, 302365, 309785, 381094, 544420, 604730, 619570, 762188, 952735, 1209460, 1239140, 1442713, 1905470, 2885426, 3810940, 5770852, 7213565, 10098991, 14427130, 20197982, 28854260, 40395964, 50494955, 100989910, 201979820]

約数ペア:

[(1, 201979820), (2, 100989910), (4, 50494955), (5, 40395964), (7, 28854260), (10, 20197982), (14, 14427130), (20, 10098991), (28, 7213565), (35, 5770852), (53, 3810940), (70, 2885426), (106, 1905470), (140, 1442713), (163, 1239140), (167, 1209460), (212, 952735), (265, 762188), (326, 619570), (334, 604730), (371, 544420), (530, 381094), (652, 309785), (668, 302365), (742, 272210), (815, 247828), (835, 241892), (1060, 190547), (1141, 177020), (1169, 172780), (1484, 136105), (1630, 123914), (1670, 120946), (1855, 108884), (2282, 88510), (2338, 86390), (3260, 61957), (3340, 60473), (3710, 54442), (4564, 44255), (4676, 43195), (5705, 35404), (5845, 34556), (7420, 27221), (8639, 23380), (8851, 22820), (11410, 17702), (11690, 17278)]