201100720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:794

約数の個数: 80

約数和(自身を含む): 487111680

約数和(自身を除く): 286010960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 131, 155, 248, 262, 310, 496, 524, 619, 620, 655, 1048, 1238, 1240, 1310, 2096, 2476, 2480, 2620, 3095, 4061, 4952, 5240, 6190, 8122, 9904, 10480, 12380, 16244, 19189, 20305, 24760, 32488, 38378, 40610, 49520, 64976, 76756, 81089, 81220, 95945, 153512, 162178, 162440, 191890, 307024, 324356, 324880, 383780, 405445, 648712, 767560, 810890, 1297424, 1535120, 1621780, 2513759, 3243560, 5027518, 6487120, 10055036, 12568795, 20110072, 25137590, 40220144, 50275180, 100550360, 201100720]

約数ペア:

[(1, 201100720), (2, 100550360), (4, 50275180), (5, 40220144), (8, 25137590), (10, 20110072), (16, 12568795), (20, 10055036), (31, 6487120), (40, 5027518), (62, 3243560), (80, 2513759), (124, 1621780), (131, 1535120), (155, 1297424), (248, 810890), (262, 767560), (310, 648712), (496, 405445), (524, 383780), (619, 324880), (620, 324356), (655, 307024), (1048, 191890), (1238, 162440), (1240, 162178), (1310, 153512), (2096, 95945), (2476, 81220), (2480, 81089), (2620, 76756), (3095, 64976), (4061, 49520), (4952, 40610), (5240, 38378), (6190, 32488), (8122, 24760), (9904, 20305), (10480, 19189), (12380, 16244)]