71028400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 180175968

約数和(自身を除く): 109147568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 61, 71, 80, 82, 100, 122, 142, 164, 200, 205, 244, 284, 305, 328, 355, 400, 410, 488, 568, 610, 656, 710, 820, 976, 1025, 1136, 1220, 1420, 1525, 1640, 1775, 2050, 2440, 2501, 2840, 2911, 3050, 3280, 3550, 4100, 4331, 4880, 5002, 5680, 5822, 6100, 7100, 8200, 8662, 10004, 11644, 12200, 12505, 14200, 14555, 16400, 17324, 20008, 21655, 23288, 24400, 25010, 28400, 29110, 34648, 40016, 43310, 46576, 50020, 58220, 62525, 69296, 72775, 86620, 100040, 108275, 116440, 125050, 145550, 173240, 177571, 200080, 216550, 232880, 250100, 291100, 346480, 355142, 433100, 500200, 582200, 710284, 866200, 887855, 1000400, 1164400, 1420568, 1732400, 1775710, 2841136, 3551420, 4439275, 7102840, 8878550, 14205680, 17757100, 35514200, 71028400]

約数ペア:

[(1, 71028400), (2, 35514200), (4, 17757100), (5, 14205680), (8, 8878550), (10, 7102840), (16, 4439275), (20, 3551420), (25, 2841136), (40, 1775710), (41, 1732400), (50, 1420568), (61, 1164400), (71, 1000400), (80, 887855), (82, 866200), (100, 710284), (122, 582200), (142, 500200), (164, 433100), (200, 355142), (205, 346480), (244, 291100), (284, 250100), (305, 232880), (328, 216550), (355, 200080), (400, 177571), (410, 173240), (488, 145550), (568, 125050), (610, 116440), (656, 108275), (710, 100040), (820, 86620), (976, 72775), (1025, 69296), (1136, 62525), (1220, 58220), (1420, 50020), (1525, 46576), (1640, 43310), (1775, 40016), (2050, 34648), (2440, 29110), (2501, 28400), (2840, 25010), (2911, 24400), (3050, 23288), (3280, 21655), (3550, 20008), (4100, 17324), (4331, 16400), (4880, 14555), (5002, 14200), (5680, 12505), (5822, 12200), (6100, 11644), (7100, 10004), (8200, 8662)]