71921960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{733}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 177569280

約数和(自身を除く): 105647320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 440, 446, 733, 892, 1115, 1466, 1784, 2230, 2453, 2932, 3665, 4460, 4906, 5864, 7330, 8063, 8920, 9812, 12265, 14660, 16126, 19624, 24530, 29320, 32252, 40315, 49060, 64504, 80630, 98120, 161260, 163459, 322520, 326918, 653836, 817295, 1307672, 1634590, 1798049, 3269180, 3596098, 6538360, 7192196, 8990245, 14384392, 17980490, 35960980, 71921960]

約数ペア:

[(1, 71921960), (2, 35960980), (4, 17980490), (5, 14384392), (8, 8990245), (10, 7192196), (11, 6538360), (20, 3596098), (22, 3269180), (40, 1798049), (44, 1634590), (55, 1307672), (88, 817295), (110, 653836), (220, 326918), (223, 322520), (440, 163459), (446, 161260), (733, 98120), (892, 80630), (1115, 64504), (1466, 49060), (1784, 40315), (2230, 32252), (2453, 29320), (2932, 24530), (3665, 19624), (4460, 16126), (4906, 14660), (5864, 12265), (7330, 9812), (8063, 8920)]