201639560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:710

約数の個数: 64

約数和(自身を含む): 465393600

約数和(自身を除く): 263754040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 227, 265, 419, 424, 454, 530, 838, 908, 1060, 1135, 1676, 1816, 2095, 2120, 2270, 3352, 4190, 4540, 8380, 9080, 12031, 16760, 22207, 24062, 44414, 48124, 60155, 88828, 95113, 96248, 111035, 120310, 177656, 190226, 222070, 240620, 380452, 444140, 475565, 481240, 760904, 888280, 951130, 1902260, 3804520, 5040989, 10081978, 20163956, 25204945, 40327912, 50409890, 100819780, 201639560]

約数ペア:

[(1, 201639560), (2, 100819780), (4, 50409890), (5, 40327912), (8, 25204945), (10, 20163956), (20, 10081978), (40, 5040989), (53, 3804520), (106, 1902260), (212, 951130), (227, 888280), (265, 760904), (419, 481240), (424, 475565), (454, 444140), (530, 380452), (838, 240620), (908, 222070), (1060, 190226), (1135, 177656), (1676, 120310), (1816, 111035), (2095, 96248), (2120, 95113), (2270, 88828), (3352, 60155), (4190, 48124), (4540, 44414), (8380, 24062), (9080, 22207), (12031, 16760)]