15861440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:194

約数の個数: 112

約数和(自身を含む): 44208192

約数和(自身を除く): 28346752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 97, 112, 140, 146, 160, 194, 224, 280, 292, 320, 365, 388, 448, 485, 511, 560, 584, 679, 730, 776, 970, 1022, 1120, 1168, 1358, 1460, 1552, 1940, 2044, 2240, 2336, 2555, 2716, 2920, 3104, 3395, 3880, 4088, 4672, 5110, 5432, 5840, 6208, 6790, 7081, 7760, 8176, 10220, 10864, 11680, 13580, 14162, 15520, 16352, 20440, 21728, 23360, 27160, 28324, 31040, 32704, 35405, 40880, 43456, 49567, 54320, 56648, 70810, 81760, 99134, 108640, 113296, 141620, 163520, 198268, 217280, 226592, 247835, 283240, 396536, 453184, 495670, 566480, 793072, 991340, 1132960, 1586144, 1982680, 2265920, 3172288, 3965360, 7930720, 15861440]

約数ペア:

[(1, 15861440), (2, 7930720), (4, 3965360), (5, 3172288), (7, 2265920), (8, 1982680), (10, 1586144), (14, 1132960), (16, 991340), (20, 793072), (28, 566480), (32, 495670), (35, 453184), (40, 396536), (56, 283240), (64, 247835), (70, 226592), (73, 217280), (80, 198268), (97, 163520), (112, 141620), (140, 113296), (146, 108640), (160, 99134), (194, 81760), (224, 70810), (280, 56648), (292, 54320), (320, 49567), (365, 43456), (388, 40880), (448, 35405), (485, 32704), (511, 31040), (560, 28324), (584, 27160), (679, 23360), (730, 21728), (776, 20440), (970, 16352), (1022, 15520), (1120, 14162), (1168, 13580), (1358, 11680), (1460, 10864), (1552, 10220), (1940, 8176), (2044, 7760), (2240, 7081), (2336, 6790), (2555, 6208), (2716, 5840), (2920, 5432), (3104, 5110), (3395, 4672), (3880, 4088)]