19741820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6131}}^1$

素因数の和:6170

約数の個数: 48

約数和(自身を含む): 49448448

約数和(自身を除く): 29706628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6131, 12262, 24524, 30655, 42917, 61310, 85834, 122620, 141013, 171668, 214585, 282026, 429170, 564052, 705065, 858340, 987091, 1410130, 1974182, 2820260, 3948364, 4935455, 9870910, 19741820]

約数ペア:

[(1, 19741820), (2, 9870910), (4, 4935455), (5, 3948364), (7, 2820260), (10, 1974182), (14, 1410130), (20, 987091), (23, 858340), (28, 705065), (35, 564052), (46, 429170), (70, 282026), (92, 214585), (115, 171668), (140, 141013), (161, 122620), (230, 85834), (322, 61310), (460, 42917), (644, 30655), (805, 24524), (1610, 12262), (3220, 6131)]