19578980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 44319744

約数和(自身を除く): 24740764

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1373, 1426, 2746, 2852, 3565, 5492, 6865, 7130, 13730, 14260, 27460, 31579, 42563, 63158, 85126, 126316, 157895, 170252, 212815, 315790, 425630, 631580, 851260, 978949, 1957898, 3915796, 4894745, 9789490, 19578980]

約数ペア:

[(1, 19578980), (2, 9789490), (4, 4894745), (5, 3915796), (10, 1957898), (20, 978949), (23, 851260), (31, 631580), (46, 425630), (62, 315790), (92, 212815), (115, 170252), (124, 157895), (155, 126316), (230, 85126), (310, 63158), (460, 42563), (620, 31579), (713, 27460), (1373, 14260), (1426, 13730), (2746, 7130), (2852, 6865), (3565, 5492)]