38808640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:540

約数の個数: 112

約数和(自身を含む): 104973120

約数和(自身を除く): 66164480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 491, 494, 520, 608, 760, 832, 982, 988, 1040, 1216, 1235, 1520, 1964, 1976, 2080, 2455, 2470, 3040, 3928, 3952, 4160, 4910, 4940, 6080, 6383, 7856, 7904, 9329, 9820, 9880, 12766, 15712, 15808, 18658, 19640, 19760, 25532, 31424, 31915, 37316, 39280, 39520, 46645, 51064, 63830, 74632, 78560, 79040, 93290, 102128, 121277, 127660, 149264, 157120, 186580, 204256, 242554, 255320, 298528, 373160, 408512, 485108, 510640, 597056, 606385, 746320, 970216, 1021280, 1212770, 1492640, 1940432, 2042560, 2425540, 2985280, 3880864, 4851080, 7761728, 9702160, 19404320, 38808640]

約数ペア:

[(1, 38808640), (2, 19404320), (4, 9702160), (5, 7761728), (8, 4851080), (10, 3880864), (13, 2985280), (16, 2425540), (19, 2042560), (20, 1940432), (26, 1492640), (32, 1212770), (38, 1021280), (40, 970216), (52, 746320), (64, 606385), (65, 597056), (76, 510640), (80, 485108), (95, 408512), (104, 373160), (130, 298528), (152, 255320), (160, 242554), (190, 204256), (208, 186580), (247, 157120), (260, 149264), (304, 127660), (320, 121277), (380, 102128), (416, 93290), (491, 79040), (494, 78560), (520, 74632), (608, 63830), (760, 51064), (832, 46645), (982, 39520), (988, 39280), (1040, 37316), (1216, 31915), (1235, 31424), (1520, 25532), (1964, 19760), (1976, 19640), (2080, 18658), (2455, 15808), (2470, 15712), (3040, 12766), (3928, 9880), (3952, 9820), (4160, 9329), (4910, 7904), (4940, 7856), (6080, 6383)]