645461040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{384203}}^1$

素因数の和:384226

約数の個数: 80

約数和(自身を含む): 2286782208

約数和(自身を除く): 1641321168

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, 384203, 768406, 1152609, 1536812, 1921015, 2305218, 2689421, 3073624, 3842030, 4610436, 5378842, 5763045, 6147248, 7684060, 8068263, 9220872, 10757684, 11526090, 13447105, 15368120, 16136526, 18441744, 21515368, 23052180, 26894210, 30736240, 32273052, 40341315, 43030736, 46104360, 53788420, 64546104, 80682630, 92208720, 107576840, 129092208, 161365260, 215153680, 322730520, 645461040]

約数ペア:

[(1, 645461040), (2, 322730520), (3, 215153680), (4, 161365260), (5, 129092208), (6, 107576840), (7, 92208720), (8, 80682630), (10, 64546104), (12, 53788420), (14, 46104360), (15, 43030736), (16, 40341315), (20, 32273052), (21, 30736240), (24, 26894210), (28, 23052180), (30, 21515368), (35, 18441744), (40, 16136526), (42, 15368120), (48, 13447105), (56, 11526090), (60, 10757684), (70, 9220872), (80, 8068263), (84, 7684060), (105, 6147248), (112, 5763045), (120, 5378842), (140, 4610436), (168, 3842030), (210, 3073624), (240, 2689421), (280, 2305218), (336, 1921015), (420, 1536812), (560, 1152609), (840, 768406), (1680, 384203)]