28778400

素因数分解:

$2^5\times 3^2\times 5^2\times 7^1\times {\mathrm{571}}^1$

素因数の和:604

約数の個数: 216

約数和(自身を含む): 116180064

約数和(自身を除く): 87401664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 126, 140, 144, 150, 160, 168, 175, 180, 200, 210, 224, 225, 240, 252, 280, 288, 300, 315, 336, 350, 360, 400, 420, 450, 480, 504, 525, 560, 571, 600, 630, 672, 700, 720, 800, 840, 900, 1008, 1050, 1120, 1142, 1200, 1260, 1400, 1440, 1575, 1680, 1713, 1800, 2016, 2100, 2284, 2400, 2520, 2800, 2855, 3150, 3360, 3426, 3600, 3997, 4200, 4568, 5040, 5139, 5600, 5710, 6300, 6852, 7200, 7994, 8400, 8565, 9136, 10080, 10278, 11420, 11991, 12600, 13704, 14275, 15988, 16800, 17130, 18272, 19985, 20556, 22840, 23982, 25200, 25695, 27408, 28550, 31976, 34260, 35973, 39970, 41112, 42825, 45680, 47964, 50400, 51390, 54816, 57100, 59955, 63952, 68520, 71946, 79940, 82224, 85650, 91360, 95928, 99925, 102780, 114200, 119910, 127904, 128475, 137040, 143892, 159880, 164448, 171300, 179865, 191856, 199850, 205560, 228400, 239820, 256950, 274080, 287784, 299775, 319760, 342600, 359730, 383712, 399700, 411120, 456800, 479640, 513900, 575568, 599550, 639520, 685200, 719460, 799400, 822240, 899325, 959280, 1027800, 1151136, 1199100, 1370400, 1438920, 1598800, 1798650, 1918560, 2055600, 2398200, 2877840, 3197600, 3597300, 4111200, 4796400, 5755680, 7194600, 9592800, 14389200, 28778400]

約数ペア:

[(1, 28778400), (2, 14389200), (3, 9592800), (4, 7194600), (5, 5755680), (6, 4796400), (7, 4111200), (8, 3597300), (9, 3197600), (10, 2877840), (12, 2398200), (14, 2055600), (15, 1918560), (16, 1798650), (18, 1598800), (20, 1438920), (21, 1370400), (24, 1199100), (25, 1151136), (28, 1027800), (30, 959280), (32, 899325), (35, 822240), (36, 799400), (40, 719460), (42, 685200), (45, 639520), (48, 599550), (50, 575568), (56, 513900), (60, 479640), (63, 456800), (70, 411120), (72, 399700), (75, 383712), (80, 359730), (84, 342600), (90, 319760), (96, 299775), (100, 287784), (105, 274080), (112, 256950), (120, 239820), (126, 228400), (140, 205560), (144, 199850), (150, 191856), (160, 179865), (168, 171300), (175, 164448), (180, 159880), (200, 143892), (210, 137040), (224, 128475), (225, 127904), (240, 119910), (252, 114200), (280, 102780), (288, 99925), (300, 95928), (315, 91360), (336, 85650), (350, 82224), (360, 79940), (400, 71946), (420, 68520), (450, 63952), (480, 59955), (504, 57100), (525, 54816), (560, 51390), (571, 50400), (600, 47964), (630, 45680), (672, 42825), (700, 41112), (720, 39970), (800, 35973), (840, 34260), (900, 31976), (1008, 28550), (1050, 27408), (1120, 25695), (1142, 25200), (1200, 23982), (1260, 22840), (1400, 20556), (1440, 19985), (1575, 18272), (1680, 17130), (1713, 16800), (1800, 15988), (2016, 14275), (2100, 13704), (2284, 12600), (2400, 11991), (2520, 11420), (2800, 10278), (2855, 10080), (3150, 9136), (3360, 8565), (3426, 8400), (3600, 7994), (3997, 7200), (4200, 6852), (4568, 6300), (5040, 5710), (5139, 5600)]