18686080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 52778880

約数和(自身を除く): 34092800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 97, 112, 128, 140, 160, 172, 194, 215, 224, 280, 301, 320, 344, 388, 430, 448, 485, 560, 602, 640, 679, 688, 776, 860, 896, 970, 1120, 1204, 1358, 1376, 1505, 1552, 1720, 1940, 2240, 2408, 2716, 2752, 3010, 3104, 3395, 3440, 3880, 4171, 4480, 4816, 5432, 5504, 6020, 6208, 6790, 6880, 7760, 8342, 9632, 10864, 12040, 12416, 13580, 13760, 15520, 16684, 19264, 20855, 21728, 24080, 27160, 27520, 29197, 31040, 33368, 38528, 41710, 43456, 48160, 54320, 58394, 62080, 66736, 83420, 86912, 96320, 108640, 116788, 133472, 145985, 166840, 192640, 217280, 233576, 266944, 291970, 333680, 434560, 467152, 533888, 583940, 667360, 934304, 1167880, 1334720, 1868608, 2335760, 2669440, 3737216, 4671520, 9343040, 18686080]

約数ペア:

[(1, 18686080), (2, 9343040), (4, 4671520), (5, 3737216), (7, 2669440), (8, 2335760), (10, 1868608), (14, 1334720), (16, 1167880), (20, 934304), (28, 667360), (32, 583940), (35, 533888), (40, 467152), (43, 434560), (56, 333680), (64, 291970), (70, 266944), (80, 233576), (86, 217280), (97, 192640), (112, 166840), (128, 145985), (140, 133472), (160, 116788), (172, 108640), (194, 96320), (215, 86912), (224, 83420), (280, 66736), (301, 62080), (320, 58394), (344, 54320), (388, 48160), (430, 43456), (448, 41710), (485, 38528), (560, 33368), (602, 31040), (640, 29197), (679, 27520), (688, 27160), (776, 24080), (860, 21728), (896, 20855), (970, 19264), (1120, 16684), (1204, 15520), (1358, 13760), (1376, 13580), (1505, 12416), (1552, 12040), (1720, 10864), (1940, 9632), (2240, 8342), (2408, 7760), (2716, 6880), (2752, 6790), (3010, 6208), (3104, 6020), (3395, 5504), (3440, 5432), (3880, 4816), (4171, 4480)]