28921860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1$

素因数の和:576

約数の個数: 144

約数和(自身を含む): 99433152

約数和(自身を除く): 70511292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 243, 270, 297, 324, 330, 396, 405, 486, 495, 540, 541, 594, 660, 810, 891, 972, 990, 1082, 1188, 1215, 1485, 1620, 1623, 1782, 1980, 2164, 2430, 2673, 2705, 2970, 3246, 3564, 4455, 4860, 4869, 5346, 5410, 5940, 5951, 6492, 8115, 8910, 9738, 10692, 10820, 11902, 13365, 14607, 16230, 17820, 17853, 19476, 23804, 24345, 26730, 29214, 29755, 32460, 35706, 43821, 48690, 53460, 53559, 58428, 59510, 71412, 73035, 87642, 89265, 97380, 107118, 119020, 131463, 146070, 160677, 175284, 178530, 214236, 219105, 262926, 267795, 292140, 321354, 357060, 438210, 482031, 525852, 535590, 642708, 657315, 803385, 876420, 964062, 1071180, 1314630, 1446093, 1606770, 1928124, 2410155, 2629260, 2892186, 3213540, 4820310, 5784372, 7230465, 9640620, 14460930, 28921860]

約数ペア:

[(1, 28921860), (2, 14460930), (3, 9640620), (4, 7230465), (5, 5784372), (6, 4820310), (9, 3213540), (10, 2892186), (11, 2629260), (12, 2410155), (15, 1928124), (18, 1606770), (20, 1446093), (22, 1314630), (27, 1071180), (30, 964062), (33, 876420), (36, 803385), (44, 657315), (45, 642708), (54, 535590), (55, 525852), (60, 482031), (66, 438210), (81, 357060), (90, 321354), (99, 292140), (108, 267795), (110, 262926), (132, 219105), (135, 214236), (162, 178530), (165, 175284), (180, 160677), (198, 146070), (220, 131463), (243, 119020), (270, 107118), (297, 97380), (324, 89265), (330, 87642), (396, 73035), (405, 71412), (486, 59510), (495, 58428), (540, 53559), (541, 53460), (594, 48690), (660, 43821), (810, 35706), (891, 32460), (972, 29755), (990, 29214), (1082, 26730), (1188, 24345), (1215, 23804), (1485, 19476), (1620, 17853), (1623, 17820), (1782, 16230), (1980, 14607), (2164, 13365), (2430, 11902), (2673, 10820), (2705, 10692), (2970, 9738), (3246, 8910), (3564, 8115), (4455, 6492), (4860, 5951), (4869, 5940), (5346, 5410)]