388771245

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 731808000

約数和(自身を除く): 343036755

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 79, 81, 87, 135, 145, 237, 261, 395, 405, 419, 435, 711, 783, 1185, 1257, 1305, 2095, 2133, 2291, 2349, 3555, 3771, 3915, 6285, 6399, 6873, 10665, 11313, 11455, 11745, 12151, 18855, 20619, 31995, 33101, 33939, 34365, 36453, 56565, 60755, 61857, 99303, 103095, 109359, 165505, 169695, 182265, 185571, 297909, 309285, 328077, 496515, 546795, 893727, 927855, 959929, 984231, 1489545, 1640385, 2681181, 2879787, 4468635, 4799645, 4921155, 8639361, 13405905, 14398935, 25918083, 43196805, 77754249, 129590415, 388771245]

約数ペア:

[(1, 388771245), (3, 129590415), (5, 77754249), (9, 43196805), (15, 25918083), (27, 14398935), (29, 13405905), (45, 8639361), (79, 4921155), (81, 4799645), (87, 4468635), (135, 2879787), (145, 2681181), (237, 1640385), (261, 1489545), (395, 984231), (405, 959929), (419, 927855), (435, 893727), (711, 546795), (783, 496515), (1185, 328077), (1257, 309285), (1305, 297909), (2095, 185571), (2133, 182265), (2291, 169695), (2349, 165505), (3555, 109359), (3771, 103095), (3915, 99303), (6285, 61857), (6399, 60755), (6873, 56565), (10665, 36453), (11313, 34365), (11455, 33939), (11745, 33101), (12151, 31995), (18855, 20619)]