21500400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 240

約数和(自身を含む): 77495040

約数和(自身を除く): 55994640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 25, 30, 38, 40, 41, 46, 48, 50, 57, 60, 69, 75, 76, 80, 82, 92, 95, 100, 114, 115, 120, 123, 138, 150, 152, 164, 184, 190, 200, 205, 228, 230, 240, 246, 276, 285, 300, 304, 328, 345, 368, 380, 400, 410, 437, 456, 460, 475, 492, 552, 570, 575, 600, 615, 656, 690, 760, 779, 820, 874, 912, 920, 943, 950, 984, 1025, 1104, 1140, 1150, 1200, 1230, 1311, 1380, 1425, 1520, 1558, 1640, 1725, 1748, 1840, 1886, 1900, 1968, 2050, 2185, 2280, 2300, 2337, 2460, 2622, 2760, 2829, 2850, 3075, 3116, 3280, 3450, 3496, 3772, 3800, 3895, 4100, 4370, 4560, 4600, 4674, 4715, 4920, 5244, 5520, 5658, 5700, 6150, 6232, 6555, 6900, 6992, 7544, 7600, 7790, 8200, 8740, 9200, 9348, 9430, 9840, 10488, 10925, 11316, 11400, 11685, 12300, 12464, 13110, 13800, 14145, 15088, 15580, 16400, 17480, 17917, 18696, 18860, 19475, 20976, 21850, 22632, 22800, 23370, 23575, 24600, 26220, 27600, 28290, 31160, 32775, 34960, 35834, 37392, 37720, 38950, 43700, 45264, 46740, 47150, 49200, 52440, 53751, 56580, 58425, 62320, 65550, 70725, 71668, 75440, 77900, 87400, 89585, 93480, 94300, 104880, 107502, 113160, 116850, 131100, 141450, 143336, 155800, 174800, 179170, 186960, 188600, 215004, 226320, 233700, 262200, 268755, 282900, 286672, 311600, 358340, 377200, 430008, 447925, 467400, 524400, 537510, 565800, 716680, 860016, 895850, 934800, 1075020, 1131600, 1343775, 1433360, 1791700, 2150040, 2687550, 3583400, 4300080, 5375100, 7166800, 10750200, 21500400]

約数ペア:

[(1, 21500400), (2, 10750200), (3, 7166800), (4, 5375100), (5, 4300080), (6, 3583400), (8, 2687550), (10, 2150040), (12, 1791700), (15, 1433360), (16, 1343775), (19, 1131600), (20, 1075020), (23, 934800), (24, 895850), (25, 860016), (30, 716680), (38, 565800), (40, 537510), (41, 524400), (46, 467400), (48, 447925), (50, 430008), (57, 377200), (60, 358340), (69, 311600), (75, 286672), (76, 282900), (80, 268755), (82, 262200), (92, 233700), (95, 226320), (100, 215004), (114, 188600), (115, 186960), (120, 179170), (123, 174800), (138, 155800), (150, 143336), (152, 141450), (164, 131100), (184, 116850), (190, 113160), (200, 107502), (205, 104880), (228, 94300), (230, 93480), (240, 89585), (246, 87400), (276, 77900), (285, 75440), (300, 71668), (304, 70725), (328, 65550), (345, 62320), (368, 58425), (380, 56580), (400, 53751), (410, 52440), (437, 49200), (456, 47150), (460, 46740), (475, 45264), (492, 43700), (552, 38950), (570, 37720), (575, 37392), (600, 35834), (615, 34960), (656, 32775), (690, 31160), (760, 28290), (779, 27600), (820, 26220), (874, 24600), (912, 23575), (920, 23370), (943, 22800), (950, 22632), (984, 21850), (1025, 20976), (1104, 19475), (1140, 18860), (1150, 18696), (1200, 17917), (1230, 17480), (1311, 16400), (1380, 15580), (1425, 15088), (1520, 14145), (1558, 13800), (1640, 13110), (1725, 12464), (1748, 12300), (1840, 11685), (1886, 11400), (1900, 11316), (1968, 10925), (2050, 10488), (2185, 9840), (2280, 9430), (2300, 9348), (2337, 9200), (2460, 8740), (2622, 8200), (2760, 7790), (2829, 7600), (2850, 7544), (3075, 6992), (3116, 6900), (3280, 6555), (3450, 6232), (3496, 6150), (3772, 5700), (3800, 5658), (3895, 5520), (4100, 5244), (4370, 4920), (4560, 4715), (4600, 4674)]