1281969040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{46993}}^1$

素因数の和:47048

約数の個数: 80

約数和(自身を含む): 3356499456

約数和(自身を除く): 2074530416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 27280, 46993, 93986, 187972, 234965, 375944, 469930, 516923, 751888, 939860, 1033846, 1456783, 1879720, 2067692, 2584615, 2913566, 3759440, 4135384, 5169230, 5827132, 7283915, 8270768, 10338460, 11654264, 14567830, 16024613, 20676920, 23308528, 29135660, 32049226, 41353840, 58271320, 64098452, 80123065, 116542640, 128196904, 160246130, 256393808, 320492260, 640984520, 1281969040]

約数ペア:

[(1, 1281969040), (2, 640984520), (4, 320492260), (5, 256393808), (8, 160246130), (10, 128196904), (11, 116542640), (16, 80123065), (20, 64098452), (22, 58271320), (31, 41353840), (40, 32049226), (44, 29135660), (55, 23308528), (62, 20676920), (80, 16024613), (88, 14567830), (110, 11654264), (124, 10338460), (155, 8270768), (176, 7283915), (220, 5827132), (248, 5169230), (310, 4135384), (341, 3759440), (440, 2913566), (496, 2584615), (620, 2067692), (682, 1879720), (880, 1456783), (1240, 1033846), (1364, 939860), (1705, 751888), (2480, 516923), (2728, 469930), (3410, 375944), (5456, 234965), (6820, 187972), (13640, 93986), (27280, 46993)]