20319832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3203}}^1$

素因数の和:3283

約数の個数: 32

約数和(自身を含む): 41716080

約数和(自身を除く): 21396248

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3203, 6344, 6406, 12812, 25624, 41639, 83278, 166556, 195383, 333112, 390766, 781532, 1563064, 2539979, 5079958, 10159916, 20319832]

約数ペア:

[(1, 20319832), (2, 10159916), (4, 5079958), (8, 2539979), (13, 1563064), (26, 781532), (52, 390766), (61, 333112), (104, 195383), (122, 166556), (244, 83278), (488, 41639), (793, 25624), (1586, 12812), (3172, 6406), (3203, 6344)]