20422100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 48231288

約数和(自身を除く): 27809188

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 293, 340, 410, 425, 586, 697, 820, 850, 1025, 1172, 1394, 1465, 1700, 2050, 2788, 2930, 3485, 4100, 4981, 5860, 6970, 7325, 9962, 12013, 13940, 14650, 17425, 19924, 24026, 24905, 29300, 34850, 48052, 49810, 60065, 69700, 99620, 120130, 124525, 204221, 240260, 249050, 300325, 408442, 498100, 600650, 816884, 1021105, 1201300, 2042210, 4084420, 5105525, 10211050, 20422100]

約数ペア:

[(1, 20422100), (2, 10211050), (4, 5105525), (5, 4084420), (10, 2042210), (17, 1201300), (20, 1021105), (25, 816884), (34, 600650), (41, 498100), (50, 408442), (68, 300325), (82, 249050), (85, 240260), (100, 204221), (164, 124525), (170, 120130), (205, 99620), (293, 69700), (340, 60065), (410, 49810), (425, 48052), (586, 34850), (697, 29300), (820, 24905), (850, 24026), (1025, 19924), (1172, 17425), (1394, 14650), (1465, 13940), (1700, 12013), (2050, 9962), (2788, 7325), (2930, 6970), (3485, 5860), (4100, 4981)]