779649780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20399}}^1$

素因数の和:20438

約数の個数: 144

約数和(自身を含む): 2734905600

約数和(自身を除く): 1955255820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 7644, 9555, 12740, 19110, 20399, 38220, 40798, 61197, 81596, 101995, 122394, 142793, 203990, 244788, 265187, 285586, 305985, 407980, 428379, 530374, 571172, 611970, 713965, 795561, 856758, 999551, 1060748, 1223940, 1325935, 1427930, 1591122, 1713516, 1856309, 1999102, 2141895, 2651870, 2855860, 2998653, 3182244, 3712618, 3977805, 3998204, 4283790, 4997755, 5303740, 5568927, 5997306, 7425236, 7955610, 8567580, 9281545, 9995510, 11137854, 11994612, 12994163, 14993265, 15911220, 18563090, 19991020, 22275708, 25988326, 27844635, 29986530, 37126180, 38982489, 51976652, 55689270, 59973060, 64970815, 77964978, 111378540, 129941630, 155929956, 194912445, 259883260, 389824890, 779649780]

約数ペア:

[(1, 779649780), (2, 389824890), (3, 259883260), (4, 194912445), (5, 155929956), (6, 129941630), (7, 111378540), (10, 77964978), (12, 64970815), (13, 59973060), (14, 55689270), (15, 51976652), (20, 38982489), (21, 37126180), (26, 29986530), (28, 27844635), (30, 25988326), (35, 22275708), (39, 19991020), (42, 18563090), (49, 15911220), (52, 14993265), (60, 12994163), (65, 11994612), (70, 11137854), (78, 9995510), (84, 9281545), (91, 8567580), (98, 7955610), (105, 7425236), (130, 5997306), (140, 5568927), (147, 5303740), (156, 4997755), (182, 4283790), (195, 3998204), (196, 3977805), (210, 3712618), (245, 3182244), (260, 2998653), (273, 2855860), (294, 2651870), (364, 2141895), (390, 1999102), (420, 1856309), (455, 1713516), (490, 1591122), (546, 1427930), (588, 1325935), (637, 1223940), (735, 1060748), (780, 999551), (910, 856758), (980, 795561), (1092, 713965), (1274, 611970), (1365, 571172), (1470, 530374), (1820, 428379), (1911, 407980), (2548, 305985), (2730, 285586), (2940, 265187), (3185, 244788), (3822, 203990), (5460, 142793), (6370, 122394), (7644, 101995), (9555, 81596), (12740, 61197), (19110, 40798), (20399, 38220)]