28672735

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 17050145

約数列:

[1, 5, 7, 13, 29, 35, 41, 53, 65, 91, 145, 203, 205, 265, 287, 371, 377, 455, 533, 689, 1015, 1189, 1435, 1537, 1855, 1885, 2173, 2639, 2665, 3445, 3731, 4823, 5945, 7685, 8323, 10759, 10865, 13195, 15211, 15457, 18655, 19981, 24115, 28249, 41615, 53795, 63017, 76055, 77285, 99905, 108199, 139867, 141245, 197743, 315085, 441119, 540995, 699335, 819221, 988715, 2205595, 4096105, 5734547, 28672735]

約数ペア:

[(1, 28672735), (5, 5734547), (7, 4096105), (13, 2205595), (29, 988715), (35, 819221), (41, 699335), (53, 540995), (65, 441119), (91, 315085), (145, 197743), (203, 141245), (205, 139867), (265, 108199), (287, 99905), (371, 77285), (377, 76055), (455, 63017), (533, 53795), (689, 41615), (1015, 28249), (1189, 24115), (1435, 19981), (1537, 18655), (1855, 15457), (1885, 15211), (2173, 13195), (2639, 10865), (2665, 10759), (3445, 8323), (3731, 7685), (4823, 5945)]