268647940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 658627200

約数和(自身を除く): 389979260

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 109, 110, 170, 187, 218, 220, 340, 374, 436, 545, 659, 748, 935, 1090, 1199, 1318, 1853, 1870, 2180, 2398, 2636, 3295, 3706, 3740, 4796, 5995, 6590, 7249, 7412, 9265, 11203, 11990, 13180, 14498, 18530, 20383, 22406, 23980, 28996, 36245, 37060, 40766, 44812, 56015, 71831, 72490, 81532, 101915, 112030, 123233, 143662, 144980, 203830, 224060, 246466, 287324, 359155, 407660, 492932, 616165, 718310, 790141, 1221127, 1232330, 1436620, 1580282, 2442254, 2464660, 3160564, 3950705, 4884508, 6105635, 7901410, 12211270, 13432397, 15802820, 24422540, 26864794, 53729588, 67161985, 134323970, 268647940]

約数ペア:

[(1, 268647940), (2, 134323970), (4, 67161985), (5, 53729588), (10, 26864794), (11, 24422540), (17, 15802820), (20, 13432397), (22, 12211270), (34, 7901410), (44, 6105635), (55, 4884508), (68, 3950705), (85, 3160564), (109, 2464660), (110, 2442254), (170, 1580282), (187, 1436620), (218, 1232330), (220, 1221127), (340, 790141), (374, 718310), (436, 616165), (545, 492932), (659, 407660), (748, 359155), (935, 287324), (1090, 246466), (1199, 224060), (1318, 203830), (1853, 144980), (1870, 143662), (2180, 123233), (2398, 112030), (2636, 101915), (3295, 81532), (3706, 72490), (3740, 71831), (4796, 56015), (5995, 44812), (6590, 40766), (7249, 37060), (7412, 36245), (9265, 28996), (11203, 23980), (11990, 22406), (13180, 20383), (14498, 18530)]