20831370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 59885568

約数和(自身を除く): 39054198

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 49, 70, 74, 98, 105, 111, 147, 185, 210, 222, 245, 259, 294, 370, 383, 490, 518, 555, 735, 766, 777, 1110, 1149, 1295, 1470, 1554, 1813, 1915, 2298, 2590, 2681, 3626, 3830, 3885, 5362, 5439, 5745, 7770, 8043, 9065, 10878, 11490, 13405, 14171, 16086, 18130, 18767, 26810, 27195, 28342, 37534, 40215, 42513, 54390, 56301, 70855, 80430, 85026, 93835, 99197, 112602, 141710, 187670, 198394, 212565, 281505, 297591, 425130, 495985, 563010, 595182, 694379, 991970, 1388758, 1487955, 2083137, 2975910, 3471895, 4166274, 6943790, 10415685, 20831370]

約数ペア:

[(1, 20831370), (2, 10415685), (3, 6943790), (5, 4166274), (6, 3471895), (7, 2975910), (10, 2083137), (14, 1487955), (15, 1388758), (21, 991970), (30, 694379), (35, 595182), (37, 563010), (42, 495985), (49, 425130), (70, 297591), (74, 281505), (98, 212565), (105, 198394), (111, 187670), (147, 141710), (185, 112602), (210, 99197), (222, 93835), (245, 85026), (259, 80430), (294, 70855), (370, 56301), (383, 54390), (490, 42513), (518, 40215), (555, 37534), (735, 28342), (766, 27195), (777, 26810), (1110, 18767), (1149, 18130), (1295, 16086), (1470, 14171), (1554, 13405), (1813, 11490), (1915, 10878), (2298, 9065), (2590, 8043), (2681, 7770), (3626, 5745), (3830, 5439), (3885, 5362)]