28978800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 240

約数和(自身を含む): 103326720

約数和(自身を除く): 74347920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 31, 38, 40, 41, 48, 50, 57, 60, 62, 75, 76, 80, 82, 93, 95, 100, 114, 120, 123, 124, 150, 152, 155, 164, 186, 190, 200, 205, 228, 240, 246, 248, 285, 300, 304, 310, 328, 372, 380, 400, 410, 456, 465, 475, 492, 496, 570, 589, 600, 615, 620, 656, 744, 760, 775, 779, 820, 912, 930, 950, 984, 1025, 1140, 1178, 1200, 1230, 1240, 1271, 1425, 1488, 1520, 1550, 1558, 1640, 1767, 1860, 1900, 1968, 2050, 2280, 2325, 2337, 2356, 2460, 2480, 2542, 2850, 2945, 3075, 3100, 3116, 3280, 3534, 3720, 3800, 3813, 3895, 4100, 4560, 4650, 4674, 4712, 4920, 5084, 5700, 5890, 6150, 6200, 6232, 6355, 7068, 7440, 7600, 7626, 7790, 8200, 8835, 9300, 9348, 9424, 9840, 10168, 11400, 11685, 11780, 12300, 12400, 12464, 12710, 14136, 14725, 15252, 15580, 16400, 17670, 18600, 18696, 19065, 19475, 20336, 22800, 23370, 23560, 24149, 24600, 25420, 28272, 29450, 30504, 31160, 31775, 35340, 37200, 37392, 38130, 38950, 44175, 46740, 47120, 48298, 49200, 50840, 58425, 58900, 61008, 62320, 63550, 70680, 72447, 76260, 77900, 88350, 93480, 95325, 96596, 101680, 116850, 117800, 120745, 127100, 141360, 144894, 152520, 155800, 176700, 186960, 190650, 193192, 233700, 235600, 241490, 254200, 289788, 305040, 311600, 353400, 362235, 381300, 386384, 467400, 482980, 508400, 579576, 603725, 706800, 724470, 762600, 934800, 965960, 1159152, 1207450, 1448940, 1525200, 1811175, 1931920, 2414900, 2897880, 3622350, 4829800, 5795760, 7244700, 9659600, 14489400, 28978800]

約数ペア:

[(1, 28978800), (2, 14489400), (3, 9659600), (4, 7244700), (5, 5795760), (6, 4829800), (8, 3622350), (10, 2897880), (12, 2414900), (15, 1931920), (16, 1811175), (19, 1525200), (20, 1448940), (24, 1207450), (25, 1159152), (30, 965960), (31, 934800), (38, 762600), (40, 724470), (41, 706800), (48, 603725), (50, 579576), (57, 508400), (60, 482980), (62, 467400), (75, 386384), (76, 381300), (80, 362235), (82, 353400), (93, 311600), (95, 305040), (100, 289788), (114, 254200), (120, 241490), (123, 235600), (124, 233700), (150, 193192), (152, 190650), (155, 186960), (164, 176700), (186, 155800), (190, 152520), (200, 144894), (205, 141360), (228, 127100), (240, 120745), (246, 117800), (248, 116850), (285, 101680), (300, 96596), (304, 95325), (310, 93480), (328, 88350), (372, 77900), (380, 76260), (400, 72447), (410, 70680), (456, 63550), (465, 62320), (475, 61008), (492, 58900), (496, 58425), (570, 50840), (589, 49200), (600, 48298), (615, 47120), (620, 46740), (656, 44175), (744, 38950), (760, 38130), (775, 37392), (779, 37200), (820, 35340), (912, 31775), (930, 31160), (950, 30504), (984, 29450), (1025, 28272), (1140, 25420), (1178, 24600), (1200, 24149), (1230, 23560), (1240, 23370), (1271, 22800), (1425, 20336), (1488, 19475), (1520, 19065), (1550, 18696), (1558, 18600), (1640, 17670), (1767, 16400), (1860, 15580), (1900, 15252), (1968, 14725), (2050, 14136), (2280, 12710), (2325, 12464), (2337, 12400), (2356, 12300), (2460, 11780), (2480, 11685), (2542, 11400), (2850, 10168), (2945, 9840), (3075, 9424), (3100, 9348), (3116, 9300), (3280, 8835), (3534, 8200), (3720, 7790), (3800, 7626), (3813, 7600), (3895, 7440), (4100, 7068), (4560, 6355), (4650, 6232), (4674, 6200), (4712, 6150), (4920, 5890), (5084, 5700)]