388545417

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:372

約数の個数: 80

約数和(自身を含む): 665457408

約数和(自身を除く): 276911991

約数列:

[1, 3, 9, 13, 23, 27, 39, 61, 69, 81, 117, 183, 207, 263, 299, 351, 549, 621, 789, 793, 897, 1053, 1403, 1647, 1863, 2367, 2379, 2691, 3419, 4209, 4941, 6049, 7101, 7137, 8073, 10257, 12627, 16043, 18147, 18239, 21303, 21411, 24219, 30771, 37881, 48129, 54441, 54717, 64233, 78637, 92313, 113643, 144387, 163323, 164151, 208559, 235911, 276939, 368989, 433161, 489969, 492453, 625677, 707733, 1106967, 1299483, 1477359, 1877031, 2123199, 3320901, 4796857, 5631093, 6369597, 9962703, 14390571, 16893279, 29888109, 43171713, 129515139, 388545417]

約数ペア:

[(1, 388545417), (3, 129515139), (9, 43171713), (13, 29888109), (23, 16893279), (27, 14390571), (39, 9962703), (61, 6369597), (69, 5631093), (81, 4796857), (117, 3320901), (183, 2123199), (207, 1877031), (263, 1477359), (299, 1299483), (351, 1106967), (549, 707733), (621, 625677), (789, 492453), (793, 489969), (897, 433161), (1053, 368989), (1403, 276939), (1647, 235911), (1863, 208559), (2367, 164151), (2379, 163323), (2691, 144387), (3419, 113643), (4209, 92313), (4941, 78637), (6049, 64233), (7101, 54717), (7137, 54441), (8073, 48129), (10257, 37881), (12627, 30771), (16043, 24219), (18147, 21411), (18239, 21303)]