16989440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1021}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 43868328

約数和(自身を除く): 26878888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1021, 1040, 1280, 1664, 2042, 2080, 3328, 4084, 4160, 5105, 8168, 8320, 10210, 13273, 16336, 16640, 20420, 26546, 32672, 40840, 53092, 65344, 66365, 81680, 106184, 130688, 132730, 163360, 212368, 261376, 265460, 326720, 424736, 530920, 653440, 849472, 1061840, 1306880, 1698944, 2123680, 3397888, 4247360, 8494720, 16989440]

約数ペア:

[(1, 16989440), (2, 8494720), (4, 4247360), (5, 3397888), (8, 2123680), (10, 1698944), (13, 1306880), (16, 1061840), (20, 849472), (26, 653440), (32, 530920), (40, 424736), (52, 326720), (64, 265460), (65, 261376), (80, 212368), (104, 163360), (128, 132730), (130, 130688), (160, 106184), (208, 81680), (256, 66365), (260, 65344), (320, 53092), (416, 40840), (520, 32672), (640, 26546), (832, 20420), (1021, 16640), (1040, 16336), (1280, 13273), (1664, 10210), (2042, 8320), (2080, 8168), (3328, 5105), (4084, 4160)]