128631720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153133}}^1$

素因数の和:153154

約数の個数: 64

約数和(自身を含む): 441025920

約数和(自身を除く): 312394200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 153133, 306266, 459399, 612532, 765665, 918798, 1071931, 1225064, 1531330, 1837596, 2143862, 2296995, 3062660, 3215793, 3675192, 4287724, 4593990, 5359655, 6125320, 6431586, 8575448, 9187980, 10719310, 12863172, 16078965, 18375960, 21438620, 25726344, 32157930, 42877240, 64315860, 128631720]

約数ペア:

[(1, 128631720), (2, 64315860), (3, 42877240), (4, 32157930), (5, 25726344), (6, 21438620), (7, 18375960), (8, 16078965), (10, 12863172), (12, 10719310), (14, 9187980), (15, 8575448), (20, 6431586), (21, 6125320), (24, 5359655), (28, 4593990), (30, 4287724), (35, 3675192), (40, 3215793), (42, 3062660), (56, 2296995), (60, 2143862), (70, 1837596), (84, 1531330), (105, 1225064), (120, 1071931), (140, 918798), (168, 765665), (210, 612532), (280, 459399), (420, 306266), (840, 153133)]