31402140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{971}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 111694464

約数和(自身を除く): 80292324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 539, 588, 660, 735, 770, 924, 971, 980, 1078, 1155, 1470, 1540, 1617, 1942, 2156, 2310, 2695, 2913, 2940, 3234, 3884, 4620, 4855, 5390, 5826, 6468, 6797, 8085, 9710, 10681, 10780, 11652, 13594, 14565, 16170, 19420, 20391, 21362, 27188, 29130, 32043, 32340, 33985, 40782, 42724, 47579, 53405, 58260, 64086, 67970, 74767, 81564, 95158, 101955, 106810, 128172, 135940, 142737, 149534, 160215, 190316, 203910, 213620, 224301, 237895, 285474, 299068, 320430, 373835, 407820, 448602, 475790, 523369, 570948, 640860, 713685, 747670, 897204, 951580, 1046738, 1121505, 1427370, 1495340, 1570107, 2093476, 2243010, 2616845, 2854740, 3140214, 4486020, 5233690, 6280428, 7850535, 10467380, 15701070, 31402140]

約数ペア:

[(1, 31402140), (2, 15701070), (3, 10467380), (4, 7850535), (5, 6280428), (6, 5233690), (7, 4486020), (10, 3140214), (11, 2854740), (12, 2616845), (14, 2243010), (15, 2093476), (20, 1570107), (21, 1495340), (22, 1427370), (28, 1121505), (30, 1046738), (33, 951580), (35, 897204), (42, 747670), (44, 713685), (49, 640860), (55, 570948), (60, 523369), (66, 475790), (70, 448602), (77, 407820), (84, 373835), (98, 320430), (105, 299068), (110, 285474), (132, 237895), (140, 224301), (147, 213620), (154, 203910), (165, 190316), (196, 160215), (210, 149534), (220, 142737), (231, 135940), (245, 128172), (294, 106810), (308, 101955), (330, 95158), (385, 81564), (420, 74767), (462, 67970), (490, 64086), (539, 58260), (588, 53405), (660, 47579), (735, 42724), (770, 40782), (924, 33985), (971, 32340), (980, 32043), (1078, 29130), (1155, 27188), (1470, 21362), (1540, 20391), (1617, 19420), (1942, 16170), (2156, 14565), (2310, 13594), (2695, 11652), (2913, 10780), (2940, 10681), (3234, 9710), (3884, 8085), (4620, 6797), (4855, 6468), (5390, 5826)]