21720600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1097}}^1$

素因数の和:1130

約数の個数: 144

約数和(自身を含む): 79648920

約数和(自身を除く): 57928320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 50, 55, 60, 66, 72, 75, 88, 90, 99, 100, 110, 120, 132, 150, 165, 180, 198, 200, 220, 225, 264, 275, 300, 330, 360, 396, 440, 450, 495, 550, 600, 660, 792, 825, 900, 990, 1097, 1100, 1320, 1650, 1800, 1980, 2194, 2200, 2475, 3291, 3300, 3960, 4388, 4950, 5485, 6582, 6600, 8776, 9873, 9900, 10970, 12067, 13164, 16455, 19746, 19800, 21940, 24134, 26328, 27425, 32910, 36201, 39492, 43880, 48268, 49365, 54850, 60335, 65820, 72402, 78984, 82275, 96536, 98730, 108603, 109700, 120670, 131640, 144804, 164550, 181005, 197460, 217206, 219400, 241340, 246825, 289608, 301675, 329100, 362010, 394920, 434412, 482680, 493650, 543015, 603350, 658200, 724020, 868824, 905025, 987300, 1086030, 1206700, 1448040, 1810050, 1974600, 2172060, 2413400, 2715075, 3620100, 4344120, 5430150, 7240200, 10860300, 21720600]

約数ペア:

[(1, 21720600), (2, 10860300), (3, 7240200), (4, 5430150), (5, 4344120), (6, 3620100), (8, 2715075), (9, 2413400), (10, 2172060), (11, 1974600), (12, 1810050), (15, 1448040), (18, 1206700), (20, 1086030), (22, 987300), (24, 905025), (25, 868824), (30, 724020), (33, 658200), (36, 603350), (40, 543015), (44, 493650), (45, 482680), (50, 434412), (55, 394920), (60, 362010), (66, 329100), (72, 301675), (75, 289608), (88, 246825), (90, 241340), (99, 219400), (100, 217206), (110, 197460), (120, 181005), (132, 164550), (150, 144804), (165, 131640), (180, 120670), (198, 109700), (200, 108603), (220, 98730), (225, 96536), (264, 82275), (275, 78984), (300, 72402), (330, 65820), (360, 60335), (396, 54850), (440, 49365), (450, 48268), (495, 43880), (550, 39492), (600, 36201), (660, 32910), (792, 27425), (825, 26328), (900, 24134), (990, 21940), (1097, 19800), (1100, 19746), (1320, 16455), (1650, 13164), (1800, 12067), (1980, 10970), (2194, 9900), (2200, 9873), (2475, 8776), (3291, 6600), (3300, 6582), (3960, 5485), (4388, 4950)]