16721880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1209

約数の個数: 128

約数和(自身を含む): 60756480

約数和(自身を除く): 44034600

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, 1171, 1190, 1428, 1785, 2040, 2342, 2380, 2856, 3513, 3570, 4684, 4760, 5855, 7026, 7140, 8197, 9368, 11710, 14052, 14280, 16394, 17565, 19907, 23420, 24591, 28104, 32788, 35130, 39814, 40985, 46840, 49182, 59721, 65576, 70260, 79628, 81970, 98364, 99535, 119442, 122955, 139349, 140520, 159256, 163940, 196728, 199070, 238884, 245910, 278698, 298605, 327880, 398140, 418047, 477768, 491820, 557396, 597210, 696745, 796280, 836094, 983640, 1114792, 1194420, 1393490, 1672188, 2090235, 2388840, 2786980, 3344376, 4180470, 5573960, 8360940, 16721880]

約数ペア:

[(1, 16721880), (2, 8360940), (3, 5573960), (4, 4180470), (5, 3344376), (6, 2786980), (7, 2388840), (8, 2090235), (10, 1672188), (12, 1393490), (14, 1194420), (15, 1114792), (17, 983640), (20, 836094), (21, 796280), (24, 696745), (28, 597210), (30, 557396), (34, 491820), (35, 477768), (40, 418047), (42, 398140), (51, 327880), (56, 298605), (60, 278698), (68, 245910), (70, 238884), (84, 199070), (85, 196728), (102, 163940), (105, 159256), (119, 140520), (120, 139349), (136, 122955), (140, 119442), (168, 99535), (170, 98364), (204, 81970), (210, 79628), (238, 70260), (255, 65576), (280, 59721), (340, 49182), (357, 46840), (408, 40985), (420, 39814), (476, 35130), (510, 32788), (595, 28104), (680, 24591), (714, 23420), (840, 19907), (952, 17565), (1020, 16394), (1171, 14280), (1190, 14052), (1428, 11710), (1785, 9368), (2040, 8197), (2342, 7140), (2380, 7026), (2856, 5855), (3513, 4760), (3570, 4684)]