19881120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 192

約数和(自身を含む): 73495296

約数和(自身を除く): 53614176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 97, 105, 112, 120, 122, 140, 160, 168, 183, 194, 210, 224, 240, 244, 280, 291, 305, 336, 366, 388, 420, 427, 480, 485, 488, 560, 582, 610, 672, 679, 732, 776, 840, 854, 915, 970, 976, 1120, 1164, 1220, 1281, 1358, 1455, 1464, 1552, 1680, 1708, 1830, 1940, 1952, 2037, 2135, 2328, 2440, 2562, 2716, 2910, 2928, 3104, 3360, 3395, 3416, 3660, 3880, 4074, 4270, 4656, 4880, 5124, 5432, 5820, 5856, 5917, 6405, 6790, 6832, 7320, 7760, 8148, 8540, 9312, 9760, 10185, 10248, 10864, 11640, 11834, 12810, 13580, 13664, 14640, 15520, 16296, 17080, 17751, 20370, 20496, 21728, 23280, 23668, 25620, 27160, 29280, 29585, 32592, 34160, 35502, 40740, 40992, 41419, 46560, 47336, 51240, 54320, 59170, 65184, 68320, 71004, 81480, 82838, 88755, 94672, 102480, 108640, 118340, 124257, 142008, 162960, 165676, 177510, 189344, 204960, 207095, 236680, 248514, 284016, 325920, 331352, 355020, 414190, 473360, 497028, 568032, 621285, 662704, 710040, 828380, 946720, 994056, 1242570, 1325408, 1420080, 1656760, 1988112, 2485140, 2840160, 3313520, 3976224, 4970280, 6627040, 9940560, 19881120]

約数ペア:

[(1, 19881120), (2, 9940560), (3, 6627040), (4, 4970280), (5, 3976224), (6, 3313520), (7, 2840160), (8, 2485140), (10, 1988112), (12, 1656760), (14, 1420080), (15, 1325408), (16, 1242570), (20, 994056), (21, 946720), (24, 828380), (28, 710040), (30, 662704), (32, 621285), (35, 568032), (40, 497028), (42, 473360), (48, 414190), (56, 355020), (60, 331352), (61, 325920), (70, 284016), (80, 248514), (84, 236680), (96, 207095), (97, 204960), (105, 189344), (112, 177510), (120, 165676), (122, 162960), (140, 142008), (160, 124257), (168, 118340), (183, 108640), (194, 102480), (210, 94672), (224, 88755), (240, 82838), (244, 81480), (280, 71004), (291, 68320), (305, 65184), (336, 59170), (366, 54320), (388, 51240), (420, 47336), (427, 46560), (480, 41419), (485, 40992), (488, 40740), (560, 35502), (582, 34160), (610, 32592), (672, 29585), (679, 29280), (732, 27160), (776, 25620), (840, 23668), (854, 23280), (915, 21728), (970, 20496), (976, 20370), (1120, 17751), (1164, 17080), (1220, 16296), (1281, 15520), (1358, 14640), (1455, 13664), (1464, 13580), (1552, 12810), (1680, 11834), (1708, 11640), (1830, 10864), (1940, 10248), (1952, 10185), (2037, 9760), (2135, 9312), (2328, 8540), (2440, 8148), (2562, 7760), (2716, 7320), (2910, 6832), (2928, 6790), (3104, 6405), (3360, 5917), (3395, 5856), (3416, 5820), (3660, 5432), (3880, 5124), (4074, 4880), (4270, 4656)]