453440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:139

約数の個数: 56

約数和(自身を含む): 1173480

約数和(自身を除く): 720040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 130, 160, 208, 218, 260, 320, 416, 436, 520, 545, 832, 872, 1040, 1090, 1417, 1744, 2080, 2180, 2834, 3488, 4160, 4360, 5668, 6976, 7085, 8720, 11336, 14170, 17440, 22672, 28340, 34880, 45344, 56680, 90688, 113360, 226720, 453440]

約数ペア:

[(1, 453440), (2, 226720), (4, 113360), (5, 90688), (8, 56680), (10, 45344), (13, 34880), (16, 28340), (20, 22672), (26, 17440), (32, 14170), (40, 11336), (52, 8720), (64, 7085), (65, 6976), (80, 5668), (104, 4360), (109, 4160), (130, 3488), (160, 2834), (208, 2180), (218, 2080), (260, 1744), (320, 1417), (416, 1090), (436, 1040), (520, 872), (545, 832)]