28672020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12253}}^1$

素因数の和:12281

約数の個数: 72

約数和(自身を含む): 93669576

約数和(自身を除く): 64997556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 12253, 24506, 36759, 49012, 61265, 73518, 110277, 122530, 147036, 159289, 183795, 220554, 245060, 318578, 367590, 441108, 477867, 551385, 637156, 735180, 796445, 955734, 1102770, 1433601, 1592890, 1911468, 2205540, 2389335, 2867202, 3185780, 4778670, 5734404, 7168005, 9557340, 14336010, 28672020]

約数ペア:

[(1, 28672020), (2, 14336010), (3, 9557340), (4, 7168005), (5, 5734404), (6, 4778670), (9, 3185780), (10, 2867202), (12, 2389335), (13, 2205540), (15, 1911468), (18, 1592890), (20, 1433601), (26, 1102770), (30, 955734), (36, 796445), (39, 735180), (45, 637156), (52, 551385), (60, 477867), (65, 441108), (78, 367590), (90, 318578), (117, 245060), (130, 220554), (156, 183795), (180, 159289), (195, 147036), (234, 122530), (260, 110277), (390, 73518), (468, 61265), (585, 49012), (780, 36759), (1170, 24506), (2340, 12253)]