19724480

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1163}}^1$

素因数の和:1233

約数の個数: 56

約数和(自身を含む): 47896272

約数和(自身を除く): 28171792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1163, 1696, 2120, 2326, 3392, 4240, 4652, 5815, 8480, 9304, 11630, 16960, 18608, 23260, 37216, 46520, 61639, 74432, 93040, 123278, 186080, 246556, 308195, 372160, 493112, 616390, 986224, 1232780, 1972448, 2465560, 3944896, 4931120, 9862240, 19724480]

約数ペア:

[(1, 19724480), (2, 9862240), (4, 4931120), (5, 3944896), (8, 2465560), (10, 1972448), (16, 1232780), (20, 986224), (32, 616390), (40, 493112), (53, 372160), (64, 308195), (80, 246556), (106, 186080), (160, 123278), (212, 93040), (265, 74432), (320, 61639), (424, 46520), (530, 37216), (848, 23260), (1060, 18608), (1163, 16960), (1696, 11630), (2120, 9304), (2326, 8480), (3392, 5815), (4240, 4652)]