248818400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 639959040

約数和(自身を除く): 391140640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 79, 80, 100, 124, 127, 155, 158, 160, 200, 248, 254, 310, 316, 395, 400, 496, 508, 620, 632, 635, 775, 790, 800, 992, 1016, 1240, 1264, 1270, 1550, 1580, 1975, 2032, 2449, 2480, 2528, 2540, 3100, 3160, 3175, 3937, 3950, 4064, 4898, 4960, 5080, 6200, 6320, 6350, 7874, 7900, 9796, 10033, 10160, 12245, 12400, 12640, 12700, 15748, 15800, 19592, 19685, 20066, 20320, 24490, 24800, 25400, 31496, 31600, 39184, 39370, 40132, 48980, 50165, 50800, 61225, 62992, 63200, 78368, 78740, 80264, 97960, 98425, 100330, 101600, 122450, 125984, 157480, 160528, 195920, 196850, 200660, 244900, 250825, 311023, 314960, 321056, 391840, 393700, 401320, 489800, 501650, 622046, 629920, 787400, 802640, 979600, 1003300, 1244092, 1555115, 1574800, 1605280, 1959200, 2006600, 2488184, 3110230, 3149600, 4013200, 4976368, 6220460, 7775575, 8026400, 9952736, 12440920, 15551150, 24881840, 31102300, 49763680, 62204600, 124409200, 248818400]

約数ペア:

[(1, 248818400), (2, 124409200), (4, 62204600), (5, 49763680), (8, 31102300), (10, 24881840), (16, 15551150), (20, 12440920), (25, 9952736), (31, 8026400), (32, 7775575), (40, 6220460), (50, 4976368), (62, 4013200), (79, 3149600), (80, 3110230), (100, 2488184), (124, 2006600), (127, 1959200), (155, 1605280), (158, 1574800), (160, 1555115), (200, 1244092), (248, 1003300), (254, 979600), (310, 802640), (316, 787400), (395, 629920), (400, 622046), (496, 501650), (508, 489800), (620, 401320), (632, 393700), (635, 391840), (775, 321056), (790, 314960), (800, 311023), (992, 250825), (1016, 244900), (1240, 200660), (1264, 196850), (1270, 195920), (1550, 160528), (1580, 157480), (1975, 125984), (2032, 122450), (2449, 101600), (2480, 100330), (2528, 98425), (2540, 97960), (3100, 80264), (3160, 78740), (3175, 78368), (3937, 63200), (3950, 62992), (4064, 61225), (4898, 50800), (4960, 50165), (5080, 48980), (6200, 40132), (6320, 39370), (6350, 39184), (7874, 31600), (7900, 31496), (9796, 25400), (10033, 24800), (10160, 24490), (12245, 20320), (12400, 20066), (12640, 19685), (12700, 19592), (15748, 15800)]