18994920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22613}}^1$

素因数の和:22634

約数の個数: 64

約数和(自身を含む): 65128320

約数和(自身を除く): 46133400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22613, 45226, 67839, 90452, 113065, 135678, 158291, 180904, 226130, 271356, 316582, 339195, 452260, 474873, 542712, 633164, 678390, 791455, 904520, 949746, 1266328, 1356780, 1582910, 1899492, 2374365, 2713560, 3165820, 3798984, 4748730, 6331640, 9497460, 18994920]

約数ペア:

[(1, 18994920), (2, 9497460), (3, 6331640), (4, 4748730), (5, 3798984), (6, 3165820), (7, 2713560), (8, 2374365), (10, 1899492), (12, 1582910), (14, 1356780), (15, 1266328), (20, 949746), (21, 904520), (24, 791455), (28, 678390), (30, 633164), (35, 542712), (40, 474873), (42, 452260), (56, 339195), (60, 316582), (70, 271356), (84, 226130), (105, 180904), (120, 158291), (140, 135678), (168, 113065), (210, 90452), (280, 67839), (420, 45226), (840, 22613)]