281435980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3413}}^1$

素因数の和:3479

約数の個数: 96

約数和(自身を含む): 734146560

約数和(自身を除く): 452710580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 380, 434, 532, 589, 620, 665, 868, 1085, 1178, 1330, 2170, 2356, 2660, 2945, 3413, 4123, 4340, 5890, 6826, 8246, 11780, 13652, 16492, 17065, 20615, 23891, 34130, 41230, 47782, 64847, 68260, 82460, 95564, 105803, 119455, 129694, 211606, 238910, 259388, 324235, 423212, 453929, 477820, 529015, 648470, 740621, 907858, 1058030, 1296940, 1481242, 1815716, 2010257, 2116060, 2269645, 2962484, 3703105, 4020514, 4539290, 7406210, 8041028, 9078580, 10051285, 14071799, 14812420, 20102570, 28143598, 40205140, 56287196, 70358995, 140717990, 281435980]

約数ペア:

[(1, 281435980), (2, 140717990), (4, 70358995), (5, 56287196), (7, 40205140), (10, 28143598), (14, 20102570), (19, 14812420), (20, 14071799), (28, 10051285), (31, 9078580), (35, 8041028), (38, 7406210), (62, 4539290), (70, 4020514), (76, 3703105), (95, 2962484), (124, 2269645), (133, 2116060), (140, 2010257), (155, 1815716), (190, 1481242), (217, 1296940), (266, 1058030), (310, 907858), (380, 740621), (434, 648470), (532, 529015), (589, 477820), (620, 453929), (665, 423212), (868, 324235), (1085, 259388), (1178, 238910), (1330, 211606), (2170, 129694), (2356, 119455), (2660, 105803), (2945, 95564), (3413, 82460), (4123, 68260), (4340, 64847), (5890, 47782), (6826, 41230), (8246, 34130), (11780, 23891), (13652, 20615), (16492, 17065)]