19479850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1351

約数の個数: 48

約数和(自身を含む): 40747392

約数和(自身を除く): 21267542

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 115, 130, 230, 299, 325, 575, 598, 650, 1150, 1303, 1495, 2606, 2990, 6515, 7475, 13030, 14950, 16939, 29969, 32575, 33878, 59938, 65150, 84695, 149845, 169390, 299690, 389597, 423475, 749225, 779194, 846950, 1498450, 1947985, 3895970, 9739925, 19479850]

約数ペア:

[(1, 19479850), (2, 9739925), (5, 3895970), (10, 1947985), (13, 1498450), (23, 846950), (25, 779194), (26, 749225), (46, 423475), (50, 389597), (65, 299690), (115, 169390), (130, 149845), (230, 84695), (299, 65150), (325, 59938), (575, 33878), (598, 32575), (650, 29969), (1150, 16939), (1303, 14950), (1495, 13030), (2606, 7475), (2990, 6515)]