18972660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 42313740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 199, 210, 227, 398, 420, 454, 597, 681, 796, 908, 995, 1135, 1194, 1362, 1393, 1589, 1990, 2270, 2388, 2724, 2786, 2985, 3178, 3405, 3980, 4179, 4540, 4767, 5572, 5970, 6356, 6810, 6965, 7945, 8358, 9534, 11940, 13620, 13930, 15890, 16716, 19068, 20895, 23835, 27860, 31780, 41790, 45173, 47670, 83580, 90346, 95340, 135519, 180692, 225865, 271038, 316211, 451730, 542076, 632422, 677595, 903460, 948633, 1264844, 1355190, 1581055, 1897266, 2710380, 3162110, 3794532, 4743165, 6324220, 9486330, 18972660]

約数ペア:

[(1, 18972660), (2, 9486330), (3, 6324220), (4, 4743165), (5, 3794532), (6, 3162110), (7, 2710380), (10, 1897266), (12, 1581055), (14, 1355190), (15, 1264844), (20, 948633), (21, 903460), (28, 677595), (30, 632422), (35, 542076), (42, 451730), (60, 316211), (70, 271038), (84, 225865), (105, 180692), (140, 135519), (199, 95340), (210, 90346), (227, 83580), (398, 47670), (420, 45173), (454, 41790), (597, 31780), (681, 27860), (796, 23835), (908, 20895), (995, 19068), (1135, 16716), (1194, 15890), (1362, 13930), (1393, 13620), (1589, 11940), (1990, 9534), (2270, 8358), (2388, 7945), (2724, 6965), (2786, 6810), (2985, 6356), (3178, 5970), (3405, 5572), (3980, 4767), (4179, 4540)]