20912220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2371}}^1$

素因数の和:2400

約数の個数: 108

約数和(自身を含む): 73821384

約数和(自身を除く): 52909164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2371, 2940, 4410, 4742, 7113, 8820, 9484, 11855, 14226, 16597, 21339, 23710, 28452, 33194, 35565, 42678, 47420, 49791, 66388, 71130, 82985, 85356, 99582, 106695, 116179, 142260, 149373, 165970, 199164, 213390, 232358, 248955, 298746, 331940, 348537, 426780, 464716, 497910, 580895, 597492, 697074, 746865, 995820, 1045611, 1161790, 1394148, 1493730, 1742685, 2091222, 2323580, 2987460, 3485370, 4182444, 5228055, 6970740, 10456110, 20912220]

約数ペア:

[(1, 20912220), (2, 10456110), (3, 6970740), (4, 5228055), (5, 4182444), (6, 3485370), (7, 2987460), (9, 2323580), (10, 2091222), (12, 1742685), (14, 1493730), (15, 1394148), (18, 1161790), (20, 1045611), (21, 995820), (28, 746865), (30, 697074), (35, 597492), (36, 580895), (42, 497910), (45, 464716), (49, 426780), (60, 348537), (63, 331940), (70, 298746), (84, 248955), (90, 232358), (98, 213390), (105, 199164), (126, 165970), (140, 149373), (147, 142260), (180, 116179), (196, 106695), (210, 99582), (245, 85356), (252, 82985), (294, 71130), (315, 66388), (420, 49791), (441, 47420), (490, 42678), (588, 35565), (630, 33194), (735, 28452), (882, 23710), (980, 21339), (1260, 16597), (1470, 14226), (1764, 11855), (2205, 9484), (2371, 8820), (2940, 7113), (4410, 4742)]