19528450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 38497536

約数和(自身を除く): 18969086

約数列:

[1, 2, 5, 10, 25, 31, 43, 50, 62, 86, 155, 215, 293, 310, 430, 586, 775, 1075, 1333, 1465, 1550, 2150, 2666, 2930, 6665, 7325, 9083, 12599, 13330, 14650, 18166, 25198, 33325, 45415, 62995, 66650, 90830, 125990, 227075, 314975, 390569, 454150, 629950, 781138, 1952845, 3905690, 9764225, 19528450]

約数ペア:

[(1, 19528450), (2, 9764225), (5, 3905690), (10, 1952845), (25, 781138), (31, 629950), (43, 454150), (50, 390569), (62, 314975), (86, 227075), (155, 125990), (215, 90830), (293, 66650), (310, 62995), (430, 45415), (586, 33325), (775, 25198), (1075, 18166), (1333, 14650), (1465, 13330), (1550, 12599), (2150, 9083), (2666, 7325), (2930, 6665)]