390807720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15733}}^1$

素因数の和:15776

約数の個数: 128

約数和(自身を含む): 1359417600

約数和(自身を除く): 968609880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 828, 920, 1035, 1080, 1242, 1380, 1656, 2070, 2484, 2760, 3105, 4140, 4968, 6210, 8280, 12420, 15733, 24840, 31466, 47199, 62932, 78665, 94398, 125864, 141597, 157330, 188796, 235995, 283194, 314660, 361859, 377592, 424791, 471990, 566388, 629320, 707985, 723718, 849582, 943980, 1085577, 1132776, 1415970, 1447436, 1699164, 1809295, 1887960, 2123955, 2171154, 2831940, 2894872, 3256731, 3398328, 3618590, 4247910, 4342308, 5427885, 5663880, 6513462, 7237180, 8495820, 8684616, 9770193, 10855770, 13026924, 14474360, 16283655, 16991640, 19540386, 21711540, 26053848, 32567310, 39080772, 43423080, 48850965, 65134620, 78161544, 97701930, 130269240, 195403860, 390807720]

約数ペア:

[(1, 390807720), (2, 195403860), (3, 130269240), (4, 97701930), (5, 78161544), (6, 65134620), (8, 48850965), (9, 43423080), (10, 39080772), (12, 32567310), (15, 26053848), (18, 21711540), (20, 19540386), (23, 16991640), (24, 16283655), (27, 14474360), (30, 13026924), (36, 10855770), (40, 9770193), (45, 8684616), (46, 8495820), (54, 7237180), (60, 6513462), (69, 5663880), (72, 5427885), (90, 4342308), (92, 4247910), (108, 3618590), (115, 3398328), (120, 3256731), (135, 2894872), (138, 2831940), (180, 2171154), (184, 2123955), (207, 1887960), (216, 1809295), (230, 1699164), (270, 1447436), (276, 1415970), (345, 1132776), (360, 1085577), (414, 943980), (460, 849582), (540, 723718), (552, 707985), (621, 629320), (690, 566388), (828, 471990), (920, 424791), (1035, 377592), (1080, 361859), (1242, 314660), (1380, 283194), (1656, 235995), (2070, 188796), (2484, 157330), (2760, 141597), (3105, 125864), (4140, 94398), (4968, 78665), (6210, 62932), (8280, 47199), (12420, 31466), (15733, 24840)]