17916380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 21202084

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 251, 332, 415, 430, 502, 830, 860, 1004, 1255, 1660, 2510, 3569, 5020, 7138, 10793, 14276, 17845, 20833, 21586, 35690, 41666, 43172, 53965, 71380, 83332, 104165, 107930, 208330, 215860, 416660, 895819, 1791638, 3583276, 4479095, 8958190, 17916380]

約数ペア:

[(1, 17916380), (2, 8958190), (4, 4479095), (5, 3583276), (10, 1791638), (20, 895819), (43, 416660), (83, 215860), (86, 208330), (166, 107930), (172, 104165), (215, 83332), (251, 71380), (332, 53965), (415, 43172), (430, 41666), (502, 35690), (830, 21586), (860, 20833), (1004, 17845), (1255, 14276), (1660, 10793), (2510, 7138), (3569, 5020)]