12997520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 33747840

約数和(自身を除く): 20750320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 503, 646, 680, 760, 1006, 1292, 1360, 1520, 1615, 2012, 2515, 2584, 3230, 4024, 5030, 5168, 6460, 8048, 8551, 9557, 10060, 12920, 17102, 19114, 20120, 25840, 34204, 38228, 40240, 42755, 47785, 68408, 76456, 85510, 95570, 136816, 152912, 162469, 171020, 191140, 324938, 342040, 382280, 649876, 684080, 764560, 812345, 1299752, 1624690, 2599504, 3249380, 6498760, 12997520]

約数ペア:

[(1, 12997520), (2, 6498760), (4, 3249380), (5, 2599504), (8, 1624690), (10, 1299752), (16, 812345), (17, 764560), (19, 684080), (20, 649876), (34, 382280), (38, 342040), (40, 324938), (68, 191140), (76, 171020), (80, 162469), (85, 152912), (95, 136816), (136, 95570), (152, 85510), (170, 76456), (190, 68408), (272, 47785), (304, 42755), (323, 40240), (340, 38228), (380, 34204), (503, 25840), (646, 20120), (680, 19114), (760, 17102), (1006, 12920), (1292, 10060), (1360, 9557), (1520, 8551), (1615, 8048), (2012, 6460), (2515, 5168), (2584, 5030), (3230, 4024)]