20385540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5393}}^1$

素因数の和:5418

約数の個数: 96

約数和(自身を含む): 72495360

約数和(自身を除く): 52109820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5393, 10786, 16179, 21572, 26965, 32358, 37751, 48537, 53930, 64716, 75502, 80895, 97074, 107860, 113253, 145611, 151004, 161790, 188755, 194148, 226506, 242685, 291222, 323580, 339759, 377510, 453012, 485370, 566265, 582444, 679518, 728055, 755020, 970740, 1019277, 1132530, 1359036, 1456110, 1698795, 2038554, 2265060, 2912220, 3397590, 4077108, 5096385, 6795180, 10192770, 20385540]

約数ペア:

[(1, 20385540), (2, 10192770), (3, 6795180), (4, 5096385), (5, 4077108), (6, 3397590), (7, 2912220), (9, 2265060), (10, 2038554), (12, 1698795), (14, 1456110), (15, 1359036), (18, 1132530), (20, 1019277), (21, 970740), (27, 755020), (28, 728055), (30, 679518), (35, 582444), (36, 566265), (42, 485370), (45, 453012), (54, 377510), (60, 339759), (63, 323580), (70, 291222), (84, 242685), (90, 226506), (105, 194148), (108, 188755), (126, 161790), (135, 151004), (140, 145611), (180, 113253), (189, 107860), (210, 97074), (252, 80895), (270, 75502), (315, 64716), (378, 53930), (420, 48537), (540, 37751), (630, 32358), (756, 26965), (945, 21572), (1260, 16179), (1890, 10786), (3780, 5393)]