256975920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5851}}^1$

素因数の和:5931

約数の個数: 120

約数和(自身を含む): 877308432

約数和(自身を除く): 620332512

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 720, 732, 915, 976, 1098, 1220, 1464, 1830, 2196, 2440, 2745, 2928, 3660, 4392, 4880, 5490, 5851, 7320, 8784, 10980, 11702, 14640, 17553, 21960, 23404, 29255, 35106, 43920, 46808, 52659, 58510, 70212, 87765, 93616, 105318, 117020, 140424, 175530, 210636, 234040, 263295, 280848, 351060, 356911, 421272, 468080, 526590, 702120, 713822, 842544, 1053180, 1070733, 1404240, 1427644, 1784555, 2106360, 2141466, 2855288, 3212199, 3569110, 4212720, 4282932, 5353665, 5710576, 6424398, 7138220, 8565864, 10707330, 12848796, 14276440, 16060995, 17131728, 21414660, 25697592, 28552880, 32121990, 42829320, 51395184, 64243980, 85658640, 128487960, 256975920]

約数ペア:

[(1, 256975920), (2, 128487960), (3, 85658640), (4, 64243980), (5, 51395184), (6, 42829320), (8, 32121990), (9, 28552880), (10, 25697592), (12, 21414660), (15, 17131728), (16, 16060995), (18, 14276440), (20, 12848796), (24, 10707330), (30, 8565864), (36, 7138220), (40, 6424398), (45, 5710576), (48, 5353665), (60, 4282932), (61, 4212720), (72, 3569110), (80, 3212199), (90, 2855288), (120, 2141466), (122, 2106360), (144, 1784555), (180, 1427644), (183, 1404240), (240, 1070733), (244, 1053180), (305, 842544), (360, 713822), (366, 702120), (488, 526590), (549, 468080), (610, 421272), (720, 356911), (732, 351060), (915, 280848), (976, 263295), (1098, 234040), (1220, 210636), (1464, 175530), (1830, 140424), (2196, 117020), (2440, 105318), (2745, 93616), (2928, 87765), (3660, 70212), (4392, 58510), (4880, 52659), (5490, 46808), (5851, 43920), (7320, 35106), (8784, 29255), (10980, 23404), (11702, 21960), (14640, 17553)]