201645275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 282315264

約数和(自身を除く): 80669989

約数列:

[1, 5, 13, 25, 43, 47, 65, 215, 235, 307, 325, 559, 611, 1075, 1175, 1535, 2021, 2795, 3055, 3991, 7675, 10105, 13201, 13975, 14429, 15275, 19955, 26273, 50525, 66005, 72145, 99775, 131365, 171613, 187577, 330025, 360725, 620447, 656825, 858065, 937885, 3102235, 4290325, 4689425, 8065811, 15511175, 40329055, 201645275]

約数ペア:

[(1, 201645275), (5, 40329055), (13, 15511175), (25, 8065811), (43, 4689425), (47, 4290325), (65, 3102235), (215, 937885), (235, 858065), (307, 656825), (325, 620447), (559, 360725), (611, 330025), (1075, 187577), (1175, 171613), (1535, 131365), (2021, 99775), (2795, 72145), (3055, 66005), (3991, 50525), (7675, 26273), (10105, 19955), (13201, 15275), (13975, 14429)]