1440880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 80

約数和(自身を含む): 3999744

約数和(自身を除く): 2558864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 83, 112, 124, 140, 155, 166, 217, 248, 280, 310, 332, 415, 434, 496, 560, 581, 620, 664, 830, 868, 1085, 1162, 1240, 1328, 1660, 1736, 2170, 2324, 2480, 2573, 2905, 3320, 3472, 4340, 4648, 5146, 5810, 6640, 8680, 9296, 10292, 11620, 12865, 17360, 18011, 20584, 23240, 25730, 36022, 41168, 46480, 51460, 72044, 90055, 102920, 144088, 180110, 205840, 288176, 360220, 720440, 1440880]

約数ペア:

[(1, 1440880), (2, 720440), (4, 360220), (5, 288176), (7, 205840), (8, 180110), (10, 144088), (14, 102920), (16, 90055), (20, 72044), (28, 51460), (31, 46480), (35, 41168), (40, 36022), (56, 25730), (62, 23240), (70, 20584), (80, 18011), (83, 17360), (112, 12865), (124, 11620), (140, 10292), (155, 9296), (166, 8680), (217, 6640), (248, 5810), (280, 5146), (310, 4648), (332, 4340), (415, 3472), (434, 3320), (496, 2905), (560, 2573), (581, 2480), (620, 2324), (664, 2170), (830, 1736), (868, 1660), (1085, 1328), (1162, 1240)]