19900734720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{18443}}^1$

素因数の和:18748

約数の個数: 144

約数和(自身を含む): 63787614912

約数和(自身を除く): 43886880192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 281, 320, 384, 480, 562, 640, 768, 843, 960, 1124, 1280, 1405, 1686, 1920, 2248, 2810, 3372, 3840, 4215, 4496, 5620, 6744, 8430, 8992, 11240, 13488, 16860, 17984, 18443, 22480, 26976, 33720, 35968, 36886, 44960, 53952, 55329, 67440, 71936, 73772, 89920, 92215, 107904, 110658, 134880, 147544, 179840, 184430, 215808, 221316, 269760, 276645, 295088, 359680, 368860, 442632, 539520, 553290, 590176, 737720, 885264, 1079040, 1106580, 1180352, 1475440, 1770528, 2213160, 2360704, 2950880, 3541056, 4426320, 4721408, 5182483, 5901760, 7082112, 8852640, 10364966, 11803520, 14164224, 15547449, 17705280, 20729932, 23607040, 25912415, 31094898, 35410560, 41459864, 51824830, 62189796, 70821120, 77737245, 82919728, 103649660, 124379592, 155474490, 165839456, 207299320, 248759184, 310948980, 331678912, 414598640, 497518368, 621897960, 663357824, 829197280, 995036736, 1243795920, 1326715648, 1658394560, 1990073472, 2487591840, 3316789120, 3980146944, 4975183680, 6633578240, 9950367360, 19900734720]

約数ペア:

[(1, 19900734720), (2, 9950367360), (3, 6633578240), (4, 4975183680), (5, 3980146944), (6, 3316789120), (8, 2487591840), (10, 1990073472), (12, 1658394560), (15, 1326715648), (16, 1243795920), (20, 995036736), (24, 829197280), (30, 663357824), (32, 621897960), (40, 497518368), (48, 414598640), (60, 331678912), (64, 310948980), (80, 248759184), (96, 207299320), (120, 165839456), (128, 155474490), (160, 124379592), (192, 103649660), (240, 82919728), (256, 77737245), (281, 70821120), (320, 62189796), (384, 51824830), (480, 41459864), (562, 35410560), (640, 31094898), (768, 25912415), (843, 23607040), (960, 20729932), (1124, 17705280), (1280, 15547449), (1405, 14164224), (1686, 11803520), (1920, 10364966), (2248, 8852640), (2810, 7082112), (3372, 5901760), (3840, 5182483), (4215, 4721408), (4496, 4426320), (5620, 3541056), (6744, 2950880), (8430, 2360704), (8992, 2213160), (11240, 1770528), (13488, 1475440), (16860, 1180352), (17984, 1106580), (18443, 1079040), (22480, 885264), (26976, 737720), (33720, 590176), (35968, 553290), (36886, 539520), (44960, 442632), (53952, 368860), (55329, 359680), (67440, 295088), (71936, 276645), (73772, 269760), (89920, 221316), (92215, 215808), (107904, 184430), (110658, 179840), (134880, 147544)]