31400520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 101744640

約数和(自身を除く): 70344120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 367, 372, 460, 465, 552, 620, 690, 713, 734, 744, 920, 930, 1101, 1240, 1380, 1426, 1468, 1835, 1860, 2139, 2202, 2760, 2852, 2936, 3565, 3670, 3720, 4278, 4404, 5505, 5704, 7130, 7340, 8441, 8556, 8808, 10695, 11010, 11377, 14260, 14680, 16882, 17112, 21390, 22020, 22754, 25323, 28520, 33764, 34131, 42205, 42780, 44040, 45508, 50646, 56885, 67528, 68262, 84410, 85560, 91016, 101292, 113770, 126615, 136524, 168820, 170655, 202584, 227540, 253230, 261671, 273048, 337640, 341310, 455080, 506460, 523342, 682620, 785013, 1012920, 1046684, 1308355, 1365240, 1570026, 2093368, 2616710, 3140052, 3925065, 5233420, 6280104, 7850130, 10466840, 15700260, 31400520]

約数ペア:

[(1, 31400520), (2, 15700260), (3, 10466840), (4, 7850130), (5, 6280104), (6, 5233420), (8, 3925065), (10, 3140052), (12, 2616710), (15, 2093368), (20, 1570026), (23, 1365240), (24, 1308355), (30, 1046684), (31, 1012920), (40, 785013), (46, 682620), (60, 523342), (62, 506460), (69, 455080), (92, 341310), (93, 337640), (115, 273048), (120, 261671), (124, 253230), (138, 227540), (155, 202584), (184, 170655), (186, 168820), (230, 136524), (248, 126615), (276, 113770), (310, 101292), (345, 91016), (367, 85560), (372, 84410), (460, 68262), (465, 67528), (552, 56885), (620, 50646), (690, 45508), (713, 44040), (734, 42780), (744, 42205), (920, 34131), (930, 33764), (1101, 28520), (1240, 25323), (1380, 22754), (1426, 22020), (1468, 21390), (1835, 17112), (1860, 16882), (2139, 14680), (2202, 14260), (2760, 11377), (2852, 11010), (2936, 10695), (3565, 8808), (3670, 8556), (3720, 8441), (4278, 7340), (4404, 7130), (5505, 5704)]