1980897520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{16301}}^1$

素因数の和:16359

約数の個数: 120

約数和(自身を含む): 5530681728

約数和(自身を除く): 3549784208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1085, 1240, 1519, 1736, 1960, 2170, 2480, 3038, 3472, 3920, 4340, 6076, 7595, 8680, 12152, 15190, 16301, 17360, 24304, 30380, 32602, 60760, 65204, 81505, 114107, 121520, 130408, 163010, 228214, 260816, 326020, 456428, 505331, 570535, 652040, 798749, 912856, 1010662, 1141070, 1304080, 1597498, 1825712, 2021324, 2282140, 2526655, 3194996, 3537317, 3993745, 4042648, 4564280, 5053310, 6389992, 7074634, 7987490, 8085296, 9128560, 10106620, 12779984, 14149268, 15974980, 17686585, 20213240, 24761219, 28298536, 31949960, 35373170, 40426480, 49522438, 56597072, 63899920, 70746340, 99044876, 123806095, 141492680, 198089752, 247612190, 282985360, 396179504, 495224380, 990448760, 1980897520]

約数ペア:

[(1, 1980897520), (2, 990448760), (4, 495224380), (5, 396179504), (7, 282985360), (8, 247612190), (10, 198089752), (14, 141492680), (16, 123806095), (20, 99044876), (28, 70746340), (31, 63899920), (35, 56597072), (40, 49522438), (49, 40426480), (56, 35373170), (62, 31949960), (70, 28298536), (80, 24761219), (98, 20213240), (112, 17686585), (124, 15974980), (140, 14149268), (155, 12779984), (196, 10106620), (217, 9128560), (245, 8085296), (248, 7987490), (280, 7074634), (310, 6389992), (392, 5053310), (434, 4564280), (490, 4042648), (496, 3993745), (560, 3537317), (620, 3194996), (784, 2526655), (868, 2282140), (980, 2021324), (1085, 1825712), (1240, 1597498), (1519, 1304080), (1736, 1141070), (1960, 1010662), (2170, 912856), (2480, 798749), (3038, 652040), (3472, 570535), (3920, 505331), (4340, 456428), (6076, 326020), (7595, 260816), (8680, 228214), (12152, 163010), (15190, 130408), (16301, 121520), (17360, 114107), (24304, 81505), (30380, 65204), (32602, 60760)]