13440980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 35266560

約数和(自身を除く): 21825580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 163, 190, 217, 266, 310, 326, 380, 434, 532, 589, 620, 652, 665, 815, 868, 1085, 1141, 1178, 1330, 1630, 2170, 2282, 2356, 2660, 2945, 3097, 3260, 4123, 4340, 4564, 5053, 5705, 5890, 6194, 8246, 10106, 11410, 11780, 12388, 15485, 16492, 20212, 20615, 21679, 22820, 25265, 30970, 35371, 41230, 43358, 50530, 61940, 70742, 82460, 86716, 96007, 101060, 108395, 141484, 176855, 192014, 216790, 353710, 384028, 433580, 480035, 672049, 707420, 960070, 1344098, 1920140, 2688196, 3360245, 6720490, 13440980]

約数ペア:

[(1, 13440980), (2, 6720490), (4, 3360245), (5, 2688196), (7, 1920140), (10, 1344098), (14, 960070), (19, 707420), (20, 672049), (28, 480035), (31, 433580), (35, 384028), (38, 353710), (62, 216790), (70, 192014), (76, 176855), (95, 141484), (124, 108395), (133, 101060), (140, 96007), (155, 86716), (163, 82460), (190, 70742), (217, 61940), (266, 50530), (310, 43358), (326, 41230), (380, 35371), (434, 30970), (532, 25265), (589, 22820), (620, 21679), (652, 20615), (665, 20212), (815, 16492), (868, 15485), (1085, 12388), (1141, 11780), (1178, 11410), (1330, 10106), (1630, 8246), (2170, 6194), (2282, 5890), (2356, 5705), (2660, 5053), (2945, 4564), (3097, 4340), (3260, 4123)]