280600000

素因数分解:

$2^6\times 5^5\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 168

約数和(自身を含む): 738140256

約数和(自身を除く): 457540256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 61, 64, 80, 92, 100, 115, 122, 125, 160, 184, 200, 230, 244, 250, 305, 320, 368, 400, 460, 488, 500, 575, 610, 625, 736, 800, 920, 976, 1000, 1150, 1220, 1250, 1403, 1472, 1525, 1600, 1840, 1952, 2000, 2300, 2440, 2500, 2806, 2875, 3050, 3125, 3680, 3904, 4000, 4600, 4880, 5000, 5612, 5750, 6100, 6250, 7015, 7360, 7625, 8000, 9200, 9760, 10000, 11224, 11500, 12200, 12500, 14030, 14375, 15250, 18400, 19520, 20000, 22448, 23000, 24400, 25000, 28060, 28750, 30500, 35075, 36800, 38125, 40000, 44896, 46000, 48800, 50000, 56120, 57500, 61000, 70150, 71875, 76250, 89792, 92000, 97600, 100000, 112240, 115000, 122000, 140300, 143750, 152500, 175375, 184000, 190625, 200000, 224480, 230000, 244000, 280600, 287500, 305000, 350750, 381250, 448960, 460000, 488000, 561200, 575000, 610000, 701500, 762500, 876875, 920000, 1122400, 1150000, 1220000, 1403000, 1525000, 1753750, 2244800, 2300000, 2440000, 2806000, 3050000, 3507500, 4384375, 4600000, 5612000, 6100000, 7015000, 8768750, 11224000, 12200000, 14030000, 17537500, 28060000, 35075000, 56120000, 70150000, 140300000, 280600000]

約数ペア:

[(1, 280600000), (2, 140300000), (4, 70150000), (5, 56120000), (8, 35075000), (10, 28060000), (16, 17537500), (20, 14030000), (23, 12200000), (25, 11224000), (32, 8768750), (40, 7015000), (46, 6100000), (50, 5612000), (61, 4600000), (64, 4384375), (80, 3507500), (92, 3050000), (100, 2806000), (115, 2440000), (122, 2300000), (125, 2244800), (160, 1753750), (184, 1525000), (200, 1403000), (230, 1220000), (244, 1150000), (250, 1122400), (305, 920000), (320, 876875), (368, 762500), (400, 701500), (460, 610000), (488, 575000), (500, 561200), (575, 488000), (610, 460000), (625, 448960), (736, 381250), (800, 350750), (920, 305000), (976, 287500), (1000, 280600), (1150, 244000), (1220, 230000), (1250, 224480), (1403, 200000), (1472, 190625), (1525, 184000), (1600, 175375), (1840, 152500), (1952, 143750), (2000, 140300), (2300, 122000), (2440, 115000), (2500, 112240), (2806, 100000), (2875, 97600), (3050, 92000), (3125, 89792), (3680, 76250), (3904, 71875), (4000, 70150), (4600, 61000), (4880, 57500), (5000, 56120), (5612, 50000), (5750, 48800), (6100, 46000), (6250, 44896), (7015, 40000), (7360, 38125), (7625, 36800), (8000, 35075), (9200, 30500), (9760, 28750), (10000, 28060), (11224, 25000), (11500, 24400), (12200, 23000), (12500, 22448), (14030, 20000), (14375, 19520), (15250, 18400)]