18406920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1327

約数の個数: 128

約数和(自身を含む): 66873600

約数和(自身を除く): 48466680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1289, 1428, 1785, 2040, 2380, 2578, 2856, 3570, 3867, 4760, 5156, 6445, 7140, 7734, 9023, 10312, 12890, 14280, 15468, 18046, 19335, 21913, 25780, 27069, 30936, 36092, 38670, 43826, 45115, 51560, 54138, 65739, 72184, 77340, 87652, 90230, 108276, 109565, 131478, 135345, 153391, 154680, 175304, 180460, 216552, 219130, 262956, 270690, 306782, 328695, 360920, 438260, 460173, 525912, 541380, 613564, 657390, 766955, 876520, 920346, 1082760, 1227128, 1314780, 1533910, 1840692, 2300865, 2629560, 3067820, 3681384, 4601730, 6135640, 9203460, 18406920]

約数ペア:

[(1, 18406920), (2, 9203460), (3, 6135640), (4, 4601730), (5, 3681384), (6, 3067820), (7, 2629560), (8, 2300865), (10, 1840692), (12, 1533910), (14, 1314780), (15, 1227128), (17, 1082760), (20, 920346), (21, 876520), (24, 766955), (28, 657390), (30, 613564), (34, 541380), (35, 525912), (40, 460173), (42, 438260), (51, 360920), (56, 328695), (60, 306782), (68, 270690), (70, 262956), (84, 219130), (85, 216552), (102, 180460), (105, 175304), (119, 154680), (120, 153391), (136, 135345), (140, 131478), (168, 109565), (170, 108276), (204, 90230), (210, 87652), (238, 77340), (255, 72184), (280, 65739), (340, 54138), (357, 51560), (408, 45115), (420, 43826), (476, 38670), (510, 36092), (595, 30936), (680, 27069), (714, 25780), (840, 21913), (952, 19335), (1020, 18046), (1190, 15468), (1289, 14280), (1428, 12890), (1785, 10312), (2040, 9023), (2380, 7734), (2578, 7140), (2856, 6445), (3570, 5156), (3867, 4760)]