254162800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 639641600

約数和(自身を除く): 385478800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 103, 124, 155, 199, 200, 206, 248, 310, 398, 400, 412, 496, 515, 620, 775, 796, 824, 995, 1030, 1240, 1550, 1592, 1648, 1990, 2060, 2480, 2575, 3100, 3184, 3193, 3980, 4120, 4975, 5150, 6169, 6200, 6386, 7960, 8240, 9950, 10300, 12338, 12400, 12772, 15920, 15965, 19900, 20497, 20600, 24676, 25544, 30845, 31930, 39800, 40994, 41200, 49352, 51088, 61690, 63860, 79600, 79825, 81988, 98704, 102485, 123380, 127720, 154225, 159650, 163976, 204970, 246760, 255440, 308450, 319300, 327952, 409940, 493520, 512425, 616900, 635407, 638600, 819880, 1024850, 1233800, 1270814, 1277200, 1639760, 2049700, 2467600, 2541628, 3177035, 4099400, 5083256, 6354070, 8198800, 10166512, 12708140, 15885175, 25416280, 31770350, 50832560, 63540700, 127081400, 254162800]

約数ペア:

[(1, 254162800), (2, 127081400), (4, 63540700), (5, 50832560), (8, 31770350), (10, 25416280), (16, 15885175), (20, 12708140), (25, 10166512), (31, 8198800), (40, 6354070), (50, 5083256), (62, 4099400), (80, 3177035), (100, 2541628), (103, 2467600), (124, 2049700), (155, 1639760), (199, 1277200), (200, 1270814), (206, 1233800), (248, 1024850), (310, 819880), (398, 638600), (400, 635407), (412, 616900), (496, 512425), (515, 493520), (620, 409940), (775, 327952), (796, 319300), (824, 308450), (995, 255440), (1030, 246760), (1240, 204970), (1550, 163976), (1592, 159650), (1648, 154225), (1990, 127720), (2060, 123380), (2480, 102485), (2575, 98704), (3100, 81988), (3184, 79825), (3193, 79600), (3980, 63860), (4120, 61690), (4975, 51088), (5150, 49352), (6169, 41200), (6200, 40994), (6386, 39800), (7960, 31930), (8240, 30845), (9950, 25544), (10300, 24676), (12338, 20600), (12400, 20497), (12772, 19900), (15920, 15965)]