2019949295

素因数分解:

$5^1\times 7^5\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 3117907296

約数和(自身を除く): 1097958001

約数列:

[1, 5, 7, 13, 35, 43, 49, 65, 91, 215, 245, 301, 343, 455, 559, 637, 1505, 1715, 1849, 2107, 2401, 2795, 3185, 3913, 4459, 9245, 10535, 12005, 12943, 14749, 16807, 19565, 22295, 24037, 27391, 31213, 64715, 73745, 84035, 90601, 103243, 120185, 136955, 156065, 168259, 191737, 218491, 453005, 516215, 634207, 722701, 841295, 958685, 1092455, 1177813, 1342159, 3171035, 3613505, 4439449, 5889065, 6710795, 8244691, 9395113, 22197245, 31076143, 41223455, 46975565, 57712837, 155380715, 288564185, 403989859, 2019949295]

約数ペア:

[(1, 2019949295), (5, 403989859), (7, 288564185), (13, 155380715), (35, 57712837), (43, 46975565), (49, 41223455), (65, 31076143), (91, 22197245), (215, 9395113), (245, 8244691), (301, 6710795), (343, 5889065), (455, 4439449), (559, 3613505), (637, 3171035), (1505, 1342159), (1715, 1177813), (1849, 1092455), (2107, 958685), (2401, 841295), (2795, 722701), (3185, 634207), (3913, 516215), (4459, 453005), (9245, 218491), (10535, 191737), (12005, 168259), (12943, 156065), (14749, 136955), (16807, 120185), (19565, 103243), (22295, 90601), (24037, 84035), (27391, 73745), (31213, 64715)]