20644680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3511}}^1$

素因数の和:3539

約数の個数: 96

約数和(自身を含む): 72066240

約数和(自身を除く): 51421560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3511, 5880, 7022, 10533, 14044, 17555, 21066, 24577, 28088, 35110, 42132, 49154, 52665, 70220, 73731, 84264, 98308, 105330, 122885, 140440, 147462, 172039, 196616, 210660, 245770, 294924, 344078, 368655, 421320, 491540, 516117, 589848, 688156, 737310, 860195, 983080, 1032234, 1376312, 1474620, 1720390, 2064468, 2580585, 2949240, 3440780, 4128936, 5161170, 6881560, 10322340, 20644680]

約数ペア:

[(1, 20644680), (2, 10322340), (3, 6881560), (4, 5161170), (5, 4128936), (6, 3440780), (7, 2949240), (8, 2580585), (10, 2064468), (12, 1720390), (14, 1474620), (15, 1376312), (20, 1032234), (21, 983080), (24, 860195), (28, 737310), (30, 688156), (35, 589848), (40, 516117), (42, 491540), (49, 421320), (56, 368655), (60, 344078), (70, 294924), (84, 245770), (98, 210660), (105, 196616), (120, 172039), (140, 147462), (147, 140440), (168, 122885), (196, 105330), (210, 98308), (245, 84264), (280, 73731), (294, 70220), (392, 52665), (420, 49154), (490, 42132), (588, 35110), (735, 28088), (840, 24577), (980, 21066), (1176, 17555), (1470, 14044), (1960, 10533), (2940, 7022), (3511, 5880)]