19918800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{503}}^1$

素因数の和:538

約数の個数: 180

約数和(自身を含む): 75557664

約数和(自身を除く): 55638864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 99, 100, 110, 120, 132, 144, 150, 165, 176, 180, 198, 200, 220, 225, 240, 264, 275, 300, 330, 360, 396, 400, 440, 450, 495, 503, 528, 550, 600, 660, 720, 792, 825, 880, 900, 990, 1006, 1100, 1200, 1320, 1509, 1584, 1650, 1800, 1980, 2012, 2200, 2475, 2515, 2640, 3018, 3300, 3600, 3960, 4024, 4400, 4527, 4950, 5030, 5533, 6036, 6600, 7545, 7920, 8048, 9054, 9900, 10060, 11066, 12072, 12575, 13200, 15090, 16599, 18108, 19800, 20120, 22132, 22635, 24144, 25150, 27665, 30180, 33198, 36216, 37725, 39600, 40240, 44264, 45270, 49797, 50300, 55330, 60360, 66396, 72432, 75450, 82995, 88528, 90540, 99594, 100600, 110660, 113175, 120720, 132792, 138325, 150900, 165990, 181080, 199188, 201200, 221320, 226350, 248985, 265584, 276650, 301800, 331980, 362160, 398376, 414975, 442640, 452700, 497970, 553300, 603600, 663960, 796752, 829950, 905400, 995940, 1106600, 1244925, 1327920, 1659900, 1810800, 1991880, 2213200, 2489850, 3319800, 3983760, 4979700, 6639600, 9959400, 19918800]

約数ペア:

[(1, 19918800), (2, 9959400), (3, 6639600), (4, 4979700), (5, 3983760), (6, 3319800), (8, 2489850), (9, 2213200), (10, 1991880), (11, 1810800), (12, 1659900), (15, 1327920), (16, 1244925), (18, 1106600), (20, 995940), (22, 905400), (24, 829950), (25, 796752), (30, 663960), (33, 603600), (36, 553300), (40, 497970), (44, 452700), (45, 442640), (48, 414975), (50, 398376), (55, 362160), (60, 331980), (66, 301800), (72, 276650), (75, 265584), (80, 248985), (88, 226350), (90, 221320), (99, 201200), (100, 199188), (110, 181080), (120, 165990), (132, 150900), (144, 138325), (150, 132792), (165, 120720), (176, 113175), (180, 110660), (198, 100600), (200, 99594), (220, 90540), (225, 88528), (240, 82995), (264, 75450), (275, 72432), (300, 66396), (330, 60360), (360, 55330), (396, 50300), (400, 49797), (440, 45270), (450, 44264), (495, 40240), (503, 39600), (528, 37725), (550, 36216), (600, 33198), (660, 30180), (720, 27665), (792, 25150), (825, 24144), (880, 22635), (900, 22132), (990, 20120), (1006, 19800), (1100, 18108), (1200, 16599), (1320, 15090), (1509, 13200), (1584, 12575), (1650, 12072), (1800, 11066), (1980, 10060), (2012, 9900), (2200, 9054), (2475, 8048), (2515, 7920), (2640, 7545), (3018, 6600), (3300, 6036), (3600, 5533), (3960, 5030), (4024, 4950), (4400, 4527)]