249457000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:684

約数の個数: 128

約数和(自身を含む): 649958400

約数和(自身を除く): 400501400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 125, 130, 155, 200, 248, 250, 260, 310, 325, 403, 500, 520, 619, 620, 650, 775, 806, 1000, 1238, 1240, 1300, 1550, 1612, 1625, 2015, 2476, 2600, 3095, 3100, 3224, 3250, 3875, 4030, 4952, 6190, 6200, 6500, 7750, 8047, 8060, 10075, 12380, 13000, 15475, 15500, 16094, 16120, 19189, 20150, 24760, 30950, 31000, 32188, 38378, 40235, 40300, 50375, 61900, 64376, 76756, 77375, 80470, 80600, 95945, 100750, 123800, 153512, 154750, 160940, 191890, 201175, 201500, 249457, 309500, 321880, 383780, 402350, 403000, 479725, 498914, 619000, 767560, 804700, 959450, 997828, 1005875, 1247285, 1609400, 1918900, 1995656, 2011750, 2398625, 2494570, 3837800, 4023500, 4797250, 4989140, 6236425, 8047000, 9594500, 9978280, 12472850, 19189000, 24945700, 31182125, 49891400, 62364250, 124728500, 249457000]

約数ペア:

[(1, 249457000), (2, 124728500), (4, 62364250), (5, 49891400), (8, 31182125), (10, 24945700), (13, 19189000), (20, 12472850), (25, 9978280), (26, 9594500), (31, 8047000), (40, 6236425), (50, 4989140), (52, 4797250), (62, 4023500), (65, 3837800), (100, 2494570), (104, 2398625), (124, 2011750), (125, 1995656), (130, 1918900), (155, 1609400), (200, 1247285), (248, 1005875), (250, 997828), (260, 959450), (310, 804700), (325, 767560), (403, 619000), (500, 498914), (520, 479725), (619, 403000), (620, 402350), (650, 383780), (775, 321880), (806, 309500), (1000, 249457), (1238, 201500), (1240, 201175), (1300, 191890), (1550, 160940), (1612, 154750), (1625, 153512), (2015, 123800), (2476, 100750), (2600, 95945), (3095, 80600), (3100, 80470), (3224, 77375), (3250, 76756), (3875, 64376), (4030, 61900), (4952, 50375), (6190, 40300), (6200, 40235), (6500, 38378), (7750, 32188), (8047, 31000), (8060, 30950), (10075, 24760), (12380, 20150), (13000, 19189), (15475, 16120), (15500, 16094)]