667531990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{373}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 1302884352

約数和(自身を除く): 635352362

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 251, 310, 373, 502, 713, 746, 1255, 1426, 1865, 2510, 3565, 3730, 5773, 7130, 7781, 8579, 11546, 11563, 15562, 17158, 23126, 28865, 38905, 42895, 57730, 57815, 77810, 85790, 93623, 115630, 178963, 187246, 265949, 357926, 468115, 531898, 894815, 936230, 1329745, 1789630, 2153329, 2659490, 2902313, 4306658, 5804626, 10766645, 14511565, 21533290, 29023130, 66753199, 133506398, 333765995, 667531990]

約数ペア:

[(1, 667531990), (2, 333765995), (5, 133506398), (10, 66753199), (23, 29023130), (31, 21533290), (46, 14511565), (62, 10766645), (115, 5804626), (155, 4306658), (230, 2902313), (251, 2659490), (310, 2153329), (373, 1789630), (502, 1329745), (713, 936230), (746, 894815), (1255, 531898), (1426, 468115), (1865, 357926), (2510, 265949), (3565, 187246), (3730, 178963), (5773, 115630), (7130, 93623), (7781, 85790), (8579, 77810), (11546, 57815), (11563, 57730), (15562, 42895), (17158, 38905), (23126, 28865)]