16720920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{46447}}^1$

素因数の和:46464

約数の個数: 48

約数和(自身を含む): 54344160

約数和(自身を除く): 37623240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 46447, 92894, 139341, 185788, 232235, 278682, 371576, 418023, 464470, 557364, 696705, 836046, 928940, 1114728, 1393410, 1672092, 1857880, 2090115, 2786820, 3344184, 4180230, 5573640, 8360460, 16720920]

約数ペア:

[(1, 16720920), (2, 8360460), (3, 5573640), (4, 4180230), (5, 3344184), (6, 2786820), (8, 2090115), (9, 1857880), (10, 1672092), (12, 1393410), (15, 1114728), (18, 928940), (20, 836046), (24, 696705), (30, 557364), (36, 464470), (40, 418023), (45, 371576), (60, 278682), (72, 232235), (90, 185788), (120, 139341), (180, 92894), (360, 46447)]