19814960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 53434080

約数和(自身を除く): 33619120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 89, 92, 110, 115, 121, 176, 178, 184, 220, 230, 242, 253, 356, 368, 440, 445, 460, 484, 506, 605, 712, 880, 890, 920, 968, 979, 1012, 1210, 1265, 1424, 1780, 1840, 1936, 1958, 2024, 2047, 2420, 2530, 2783, 3560, 3916, 4048, 4094, 4840, 4895, 5060, 5566, 7120, 7832, 8188, 9680, 9790, 10120, 10235, 10769, 11132, 13915, 15664, 16376, 19580, 20240, 20470, 21538, 22264, 22517, 27830, 32752, 39160, 40940, 43076, 44528, 45034, 53845, 55660, 78320, 81880, 86152, 90068, 107690, 111320, 112585, 163760, 172304, 180136, 215380, 222640, 225170, 247687, 360272, 430760, 450340, 495374, 861520, 900680, 990748, 1238435, 1801360, 1981496, 2476870, 3962992, 4953740, 9907480, 19814960]

約数ペア:

[(1, 19814960), (2, 9907480), (4, 4953740), (5, 3962992), (8, 2476870), (10, 1981496), (11, 1801360), (16, 1238435), (20, 990748), (22, 900680), (23, 861520), (40, 495374), (44, 450340), (46, 430760), (55, 360272), (80, 247687), (88, 225170), (89, 222640), (92, 215380), (110, 180136), (115, 172304), (121, 163760), (176, 112585), (178, 111320), (184, 107690), (220, 90068), (230, 86152), (242, 81880), (253, 78320), (356, 55660), (368, 53845), (440, 45034), (445, 44528), (460, 43076), (484, 40940), (506, 39160), (605, 32752), (712, 27830), (880, 22517), (890, 22264), (920, 21538), (968, 20470), (979, 20240), (1012, 19580), (1210, 16376), (1265, 15664), (1424, 13915), (1780, 11132), (1840, 10769), (1936, 10235), (1958, 10120), (2024, 9790), (2047, 9680), (2420, 8188), (2530, 7832), (2783, 7120), (3560, 5566), (3916, 5060), (4048, 4895), (4094, 4840)]