638218380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{41389}}^1$

素因数の和:41658

約数の個数: 48

約数和(自身を含む): 1794008160

約数和(自身を除く): 1155789780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 2570, 3084, 3855, 5140, 7710, 15420, 41389, 82778, 124167, 165556, 206945, 248334, 413890, 496668, 620835, 827780, 1241670, 2483340, 10636973, 21273946, 31910919, 42547892, 53184865, 63821838, 106369730, 127643676, 159554595, 212739460, 319109190, 638218380]

約数ペア:

[(1, 638218380), (2, 319109190), (3, 212739460), (4, 159554595), (5, 127643676), (6, 106369730), (10, 63821838), (12, 53184865), (15, 42547892), (20, 31910919), (30, 21273946), (60, 10636973), (257, 2483340), (514, 1241670), (771, 827780), (1028, 620835), (1285, 496668), (1542, 413890), (2570, 248334), (3084, 206945), (3855, 165556), (5140, 124167), (7710, 82778), (15420, 41389)]