81252480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:542

約数の個数: 128

約数和(自身を含む): 262180800

約数和(自身を除く): 180928320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 101, 120, 128, 160, 192, 202, 240, 303, 320, 384, 404, 419, 480, 505, 606, 640, 808, 838, 960, 1010, 1212, 1257, 1515, 1616, 1676, 1920, 2020, 2095, 2424, 2514, 3030, 3232, 3352, 4040, 4190, 4848, 5028, 6060, 6285, 6464, 6704, 8080, 8380, 9696, 10056, 12120, 12570, 12928, 13408, 16160, 16760, 19392, 20112, 24240, 25140, 26816, 32320, 33520, 38784, 40224, 42319, 48480, 50280, 53632, 64640, 67040, 80448, 84638, 96960, 100560, 126957, 134080, 160896, 169276, 193920, 201120, 211595, 253914, 268160, 338552, 402240, 423190, 507828, 634785, 677104, 804480, 846380, 1015656, 1269570, 1354208, 1692760, 2031312, 2539140, 2708416, 3385520, 4062624, 5078280, 5416832, 6771040, 8125248, 10156560, 13542080, 16250496, 20313120, 27084160, 40626240, 81252480]

約数ペア:

[(1, 81252480), (2, 40626240), (3, 27084160), (4, 20313120), (5, 16250496), (6, 13542080), (8, 10156560), (10, 8125248), (12, 6771040), (15, 5416832), (16, 5078280), (20, 4062624), (24, 3385520), (30, 2708416), (32, 2539140), (40, 2031312), (48, 1692760), (60, 1354208), (64, 1269570), (80, 1015656), (96, 846380), (101, 804480), (120, 677104), (128, 634785), (160, 507828), (192, 423190), (202, 402240), (240, 338552), (303, 268160), (320, 253914), (384, 211595), (404, 201120), (419, 193920), (480, 169276), (505, 160896), (606, 134080), (640, 126957), (808, 100560), (838, 96960), (960, 84638), (1010, 80448), (1212, 67040), (1257, 64640), (1515, 53632), (1616, 50280), (1676, 48480), (1920, 42319), (2020, 40224), (2095, 38784), (2424, 33520), (2514, 32320), (3030, 26816), (3232, 25140), (3352, 24240), (4040, 20112), (4190, 19392), (4848, 16760), (5028, 16160), (6060, 13408), (6285, 12928), (6464, 12570), (6704, 12120), (8080, 10056), (8380, 9696)]