28520700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 90994176

約数和(自身を除く): 62473476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 71, 75, 78, 100, 103, 130, 142, 150, 156, 195, 206, 213, 260, 284, 300, 309, 325, 355, 390, 412, 426, 515, 618, 650, 710, 780, 852, 923, 975, 1030, 1065, 1236, 1300, 1339, 1420, 1545, 1775, 1846, 1950, 2060, 2130, 2575, 2678, 2769, 3090, 3550, 3692, 3900, 4017, 4260, 4615, 5150, 5325, 5356, 5538, 6180, 6695, 7100, 7313, 7725, 8034, 9230, 10300, 10650, 11076, 13390, 13845, 14626, 15450, 16068, 18460, 20085, 21300, 21939, 23075, 26780, 27690, 29252, 30900, 33475, 36565, 40170, 43878, 46150, 55380, 66950, 69225, 73130, 80340, 87756, 92300, 95069, 100425, 109695, 133900, 138450, 146260, 182825, 190138, 200850, 219390, 276900, 285207, 365650, 380276, 401700, 438780, 475345, 548475, 570414, 731300, 950690, 1096950, 1140828, 1426035, 1901380, 2193900, 2376725, 2852070, 4753450, 5704140, 7130175, 9506900, 14260350, 28520700]

約数ペア:

[(1, 28520700), (2, 14260350), (3, 9506900), (4, 7130175), (5, 5704140), (6, 4753450), (10, 2852070), (12, 2376725), (13, 2193900), (15, 1901380), (20, 1426035), (25, 1140828), (26, 1096950), (30, 950690), (39, 731300), (50, 570414), (52, 548475), (60, 475345), (65, 438780), (71, 401700), (75, 380276), (78, 365650), (100, 285207), (103, 276900), (130, 219390), (142, 200850), (150, 190138), (156, 182825), (195, 146260), (206, 138450), (213, 133900), (260, 109695), (284, 100425), (300, 95069), (309, 92300), (325, 87756), (355, 80340), (390, 73130), (412, 69225), (426, 66950), (515, 55380), (618, 46150), (650, 43878), (710, 40170), (780, 36565), (852, 33475), (923, 30900), (975, 29252), (1030, 27690), (1065, 26780), (1236, 23075), (1300, 21939), (1339, 21300), (1420, 20085), (1545, 18460), (1775, 16068), (1846, 15450), (1950, 14626), (2060, 13845), (2130, 13390), (2575, 11076), (2678, 10650), (2769, 10300), (3090, 9230), (3550, 8034), (3692, 7725), (3900, 7313), (4017, 7100), (4260, 6695), (4615, 6180), (5150, 5538), (5325, 5356)]