191890000

素因数分解:

$2^4\times 5^4\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:678

約数の個数: 100

約数和(自身を含む): 480346240

約数和(自身を除く): 288456240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 619, 620, 625, 775, 1000, 1238, 1240, 1250, 1550, 2000, 2476, 2480, 2500, 3095, 3100, 3875, 4952, 5000, 6190, 6200, 7750, 9904, 10000, 12380, 12400, 15475, 15500, 19189, 19375, 24760, 30950, 31000, 38378, 38750, 49520, 61900, 62000, 76756, 77375, 77500, 95945, 123800, 153512, 154750, 155000, 191890, 247600, 307024, 309500, 310000, 383780, 386875, 479725, 619000, 767560, 773750, 959450, 1238000, 1535120, 1547500, 1918900, 2398625, 3095000, 3837800, 4797250, 6190000, 7675600, 9594500, 11993125, 19189000, 23986250, 38378000, 47972500, 95945000, 191890000]

約数ペア:

[(1, 191890000), (2, 95945000), (4, 47972500), (5, 38378000), (8, 23986250), (10, 19189000), (16, 11993125), (20, 9594500), (25, 7675600), (31, 6190000), (40, 4797250), (50, 3837800), (62, 3095000), (80, 2398625), (100, 1918900), (124, 1547500), (125, 1535120), (155, 1238000), (200, 959450), (248, 773750), (250, 767560), (310, 619000), (400, 479725), (496, 386875), (500, 383780), (619, 310000), (620, 309500), (625, 307024), (775, 247600), (1000, 191890), (1238, 155000), (1240, 154750), (1250, 153512), (1550, 123800), (2000, 95945), (2476, 77500), (2480, 77375), (2500, 76756), (3095, 62000), (3100, 61900), (3875, 49520), (4952, 38750), (5000, 38378), (6190, 31000), (6200, 30950), (7750, 24760), (9904, 19375), (10000, 19189), (12380, 15500), (12400, 15475)]