19775520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:495

約数の個数: 144

約数和(自身を含む): 69818112

約数和(自身を除く): 50042592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 443, 465, 480, 496, 558, 620, 720, 744, 886, 930, 992, 1116, 1240, 1329, 1395, 1440, 1488, 1772, 1860, 2215, 2232, 2480, 2658, 2790, 2976, 3544, 3720, 3987, 4430, 4464, 4960, 5316, 5580, 6645, 7088, 7440, 7974, 8860, 8928, 10632, 11160, 13290, 13733, 14176, 14880, 15948, 17720, 19935, 21264, 22320, 26580, 27466, 31896, 35440, 39870, 41199, 42528, 44640, 53160, 54932, 63792, 68665, 70880, 79740, 82398, 106320, 109864, 123597, 127584, 137330, 159480, 164796, 205995, 212640, 219728, 247194, 274660, 318960, 329592, 411990, 439456, 494388, 549320, 617985, 637920, 659184, 823980, 988776, 1098640, 1235970, 1318368, 1647960, 1977552, 2197280, 2471940, 3295920, 3955104, 4943880, 6591840, 9887760, 19775520]

約数ペア:

[(1, 19775520), (2, 9887760), (3, 6591840), (4, 4943880), (5, 3955104), (6, 3295920), (8, 2471940), (9, 2197280), (10, 1977552), (12, 1647960), (15, 1318368), (16, 1235970), (18, 1098640), (20, 988776), (24, 823980), (30, 659184), (31, 637920), (32, 617985), (36, 549320), (40, 494388), (45, 439456), (48, 411990), (60, 329592), (62, 318960), (72, 274660), (80, 247194), (90, 219728), (93, 212640), (96, 205995), (120, 164796), (124, 159480), (144, 137330), (155, 127584), (160, 123597), (180, 109864), (186, 106320), (240, 82398), (248, 79740), (279, 70880), (288, 68665), (310, 63792), (360, 54932), (372, 53160), (443, 44640), (465, 42528), (480, 41199), (496, 39870), (558, 35440), (620, 31896), (720, 27466), (744, 26580), (886, 22320), (930, 21264), (992, 19935), (1116, 17720), (1240, 15948), (1329, 14880), (1395, 14176), (1440, 13733), (1488, 13290), (1772, 11160), (1860, 10632), (2215, 8928), (2232, 8860), (2480, 7974), (2658, 7440), (2790, 7088), (2976, 6645), (3544, 5580), (3720, 5316), (3987, 4960), (4430, 4464)]