19131340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 42255360

約数和(自身を除く): 23124020

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 523, 590, 620, 1046, 1180, 1829, 2092, 2615, 3658, 5230, 7316, 9145, 10460, 16213, 18290, 30857, 32426, 36580, 61714, 64852, 81065, 123428, 154285, 162130, 308570, 324260, 617140, 956567, 1913134, 3826268, 4782835, 9565670, 19131340]

約数ペア:

[(1, 19131340), (2, 9565670), (4, 4782835), (5, 3826268), (10, 1913134), (20, 956567), (31, 617140), (59, 324260), (62, 308570), (118, 162130), (124, 154285), (155, 123428), (236, 81065), (295, 64852), (310, 61714), (523, 36580), (590, 32426), (620, 30857), (1046, 18290), (1180, 16213), (1829, 10460), (2092, 9145), (2615, 7316), (3658, 5230)]