128390640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{76423}}^1$

素因数の和:76446

約数の個数: 80

約数和(自身を含む): 454875648

約数和(自身を除く): 326485008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 76423, 152846, 229269, 305692, 382115, 458538, 534961, 611384, 764230, 917076, 1069922, 1146345, 1222768, 1528460, 1604883, 1834152, 2139844, 2292690, 2674805, 3056920, 3209766, 3668304, 4279688, 4585380, 5349610, 6113840, 6419532, 8024415, 8559376, 9170760, 10699220, 12839064, 16048830, 18341520, 21398440, 25678128, 32097660, 42796880, 64195320, 128390640]

約数ペア:

[(1, 128390640), (2, 64195320), (3, 42796880), (4, 32097660), (5, 25678128), (6, 21398440), (7, 18341520), (8, 16048830), (10, 12839064), (12, 10699220), (14, 9170760), (15, 8559376), (16, 8024415), (20, 6419532), (21, 6113840), (24, 5349610), (28, 4585380), (30, 4279688), (35, 3668304), (40, 3209766), (42, 3056920), (48, 2674805), (56, 2292690), (60, 2139844), (70, 1834152), (80, 1604883), (84, 1528460), (105, 1222768), (112, 1146345), (120, 1069922), (140, 917076), (168, 764230), (210, 611384), (240, 534961), (280, 458538), (336, 382115), (420, 305692), (560, 229269), (840, 152846), (1680, 76423)]