19741440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 64901088

約数和(自身を除く): 45159648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 97, 106, 120, 128, 159, 160, 192, 194, 212, 240, 256, 265, 291, 318, 320, 384, 388, 424, 480, 485, 530, 582, 636, 640, 768, 776, 795, 848, 960, 970, 1060, 1164, 1272, 1280, 1455, 1552, 1590, 1696, 1920, 1940, 2120, 2328, 2544, 2910, 3104, 3180, 3392, 3840, 3880, 4240, 4656, 5088, 5141, 5820, 6208, 6360, 6784, 7760, 8480, 9312, 10176, 10282, 11640, 12416, 12720, 13568, 15423, 15520, 16960, 18624, 20352, 20564, 23280, 24832, 25440, 25705, 30846, 31040, 33920, 37248, 40704, 41128, 46560, 50880, 51410, 61692, 62080, 67840, 74496, 77115, 82256, 93120, 101760, 102820, 123384, 124160, 154230, 164512, 186240, 203520, 205640, 246768, 308460, 329024, 372480, 411280, 493536, 616920, 658048, 822560, 987072, 1233840, 1316096, 1645120, 1974144, 2467680, 3290240, 3948288, 4935360, 6580480, 9870720, 19741440]

約数ペア:

[(1, 19741440), (2, 9870720), (3, 6580480), (4, 4935360), (5, 3948288), (6, 3290240), (8, 2467680), (10, 1974144), (12, 1645120), (15, 1316096), (16, 1233840), (20, 987072), (24, 822560), (30, 658048), (32, 616920), (40, 493536), (48, 411280), (53, 372480), (60, 329024), (64, 308460), (80, 246768), (96, 205640), (97, 203520), (106, 186240), (120, 164512), (128, 154230), (159, 124160), (160, 123384), (192, 102820), (194, 101760), (212, 93120), (240, 82256), (256, 77115), (265, 74496), (291, 67840), (318, 62080), (320, 61692), (384, 51410), (388, 50880), (424, 46560), (480, 41128), (485, 40704), (530, 37248), (582, 33920), (636, 31040), (640, 30846), (768, 25705), (776, 25440), (795, 24832), (848, 23280), (960, 20564), (970, 20352), (1060, 18624), (1164, 16960), (1272, 15520), (1280, 15423), (1455, 13568), (1552, 12720), (1590, 12416), (1696, 11640), (1920, 10282), (1940, 10176), (2120, 9312), (2328, 8480), (2544, 7760), (2910, 6784), (3104, 6360), (3180, 6208), (3392, 5820), (3840, 5141), (3880, 5088), (4240, 4656)]