19669120

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 47778840

約数和(自身を除く): 28109720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 292, 320, 365, 421, 584, 640, 730, 842, 1168, 1460, 1684, 2105, 2336, 2920, 3368, 4210, 4672, 5840, 6736, 8420, 9344, 11680, 13472, 16840, 23360, 26944, 30733, 33680, 46720, 53888, 61466, 67360, 122932, 134720, 153665, 245864, 269440, 307330, 491728, 614660, 983456, 1229320, 1966912, 2458640, 3933824, 4917280, 9834560, 19669120]

約数ペア:

[(1, 19669120), (2, 9834560), (4, 4917280), (5, 3933824), (8, 2458640), (10, 1966912), (16, 1229320), (20, 983456), (32, 614660), (40, 491728), (64, 307330), (73, 269440), (80, 245864), (128, 153665), (146, 134720), (160, 122932), (292, 67360), (320, 61466), (365, 53888), (421, 46720), (584, 33680), (640, 30733), (730, 26944), (842, 23360), (1168, 16840), (1460, 13472), (1684, 11680), (2105, 9344), (2336, 8420), (2920, 6736), (3368, 5840), (4210, 4672)]