1640646945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{168013}}^1$

素因数の和:168062

約数の個数: 48

約数和(自身を含む): 3354903552

約数和(自身を除く): 1714256607

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 3255, 9765, 168013, 504039, 840065, 1176091, 1512117, 2520195, 3528273, 5208403, 5880455, 7560585, 10584819, 15625209, 17641365, 26042015, 36458821, 46875627, 52924095, 78126045, 109376463, 182294105, 234378135, 328129389, 546882315, 1640646945]

約数ペア:

[(1, 1640646945), (3, 546882315), (5, 328129389), (7, 234378135), (9, 182294105), (15, 109376463), (21, 78126045), (31, 52924095), (35, 46875627), (45, 36458821), (63, 26042015), (93, 17641365), (105, 15625209), (155, 10584819), (217, 7560585), (279, 5880455), (315, 5208403), (465, 3528273), (651, 2520195), (1085, 1512117), (1395, 1176091), (1953, 840065), (3255, 504039), (9765, 168013)]