398665980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6908

約数の個数: 144

約数和(自身を含む): 1348008480

約数和(自身を除く): 949342500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 510, 570, 612, 646, 684, 765, 855, 969, 1020, 1140, 1292, 1530, 1615, 1710, 1938, 2907, 3060, 3230, 3420, 3876, 4845, 5814, 6460, 6857, 9690, 11628, 13714, 14535, 19380, 20571, 27428, 29070, 34285, 41142, 58140, 61713, 68570, 82284, 102855, 116569, 123426, 130283, 137140, 205710, 233138, 246852, 260566, 308565, 349707, 390849, 411420, 466276, 521132, 582845, 617130, 651415, 699414, 781698, 1049121, 1165690, 1172547, 1234260, 1302830, 1398828, 1563396, 1748535, 1954245, 2098242, 2214811, 2331380, 2345094, 2605660, 3497070, 3908490, 4196484, 4429622, 4690188, 5245605, 5862735, 6644433, 6994140, 7816980, 8859244, 10491210, 11074055, 11725470, 13288866, 19933299, 20982420, 22148110, 23450940, 26577732, 33222165, 39866598, 44296220, 66444330, 79733196, 99666495, 132888660, 199332990, 398665980]

約数ペア:

[(1, 398665980), (2, 199332990), (3, 132888660), (4, 99666495), (5, 79733196), (6, 66444330), (9, 44296220), (10, 39866598), (12, 33222165), (15, 26577732), (17, 23450940), (18, 22148110), (19, 20982420), (20, 19933299), (30, 13288866), (34, 11725470), (36, 11074055), (38, 10491210), (45, 8859244), (51, 7816980), (57, 6994140), (60, 6644433), (68, 5862735), (76, 5245605), (85, 4690188), (90, 4429622), (95, 4196484), (102, 3908490), (114, 3497070), (153, 2605660), (170, 2345094), (171, 2331380), (180, 2214811), (190, 2098242), (204, 1954245), (228, 1748535), (255, 1563396), (285, 1398828), (306, 1302830), (323, 1234260), (340, 1172547), (342, 1165690), (380, 1049121), (510, 781698), (570, 699414), (612, 651415), (646, 617130), (684, 582845), (765, 521132), (855, 466276), (969, 411420), (1020, 390849), (1140, 349707), (1292, 308565), (1530, 260566), (1615, 246852), (1710, 233138), (1938, 205710), (2907, 137140), (3060, 130283), (3230, 123426), (3420, 116569), (3876, 102855), (4845, 82284), (5814, 68570), (6460, 61713), (6857, 58140), (9690, 41142), (11628, 34285), (13714, 29070), (14535, 27428), (19380, 20571)]