397973520

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{26321}}^1$

素因数の和:26350

約数の個数: 160

約数和(自身を含む): 1566685440

約数和(自身を除く): 1168711920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 26321, 52642, 78963, 105284, 131605, 157926, 184247, 210568, 236889, 263210, 315852, 368494, 394815, 421136, 473778, 526420, 552741, 631704, 710667, 736988, 789630, 921235, 947556, 1052840, 1105482, 1184445, 1263408, 1421334, 1473976, 1579260, 1658223, 1842470, 1895112, 2105680, 2210964, 2368890, 2763705, 2842668, 2947952, 3158520, 3316446, 3553335, 3684940, 3790224, 4421928, 4737780, 4974669, 5527410, 5685336, 6317040, 6632892, 7106670, 7369880, 8291115, 8843856, 9475560, 9949338, 11054820, 11370672, 13265784, 14213340, 14739760, 16582230, 18951120, 19898676, 22109640, 24873345, 26531568, 28426680, 33164460, 39797352, 44219280, 49746690, 56853360, 66328920, 79594704, 99493380, 132657840, 198986760, 397973520]

約数ペア:

[(1, 397973520), (2, 198986760), (3, 132657840), (4, 99493380), (5, 79594704), (6, 66328920), (7, 56853360), (8, 49746690), (9, 44219280), (10, 39797352), (12, 33164460), (14, 28426680), (15, 26531568), (16, 24873345), (18, 22109640), (20, 19898676), (21, 18951120), (24, 16582230), (27, 14739760), (28, 14213340), (30, 13265784), (35, 11370672), (36, 11054820), (40, 9949338), (42, 9475560), (45, 8843856), (48, 8291115), (54, 7369880), (56, 7106670), (60, 6632892), (63, 6317040), (70, 5685336), (72, 5527410), (80, 4974669), (84, 4737780), (90, 4421928), (105, 3790224), (108, 3684940), (112, 3553335), (120, 3316446), (126, 3158520), (135, 2947952), (140, 2842668), (144, 2763705), (168, 2368890), (180, 2210964), (189, 2105680), (210, 1895112), (216, 1842470), (240, 1658223), (252, 1579260), (270, 1473976), (280, 1421334), (315, 1263408), (336, 1184445), (360, 1105482), (378, 1052840), (420, 947556), (432, 921235), (504, 789630), (540, 736988), (560, 710667), (630, 631704), (720, 552741), (756, 526420), (840, 473778), (945, 421136), (1008, 394815), (1080, 368494), (1260, 315852), (1512, 263210), (1680, 236889), (1890, 210568), (2160, 184247), (2520, 157926), (3024, 131605), (3780, 105284), (5040, 78963), (7560, 52642), (15120, 26321)]