28162980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1613}}^1$

素因数の和:1725

約数の個数: 72

約数和(自身を含む): 86361912

約数和(自身を除く): 58198932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1613, 1746, 1940, 2910, 3226, 3492, 4365, 4839, 5820, 6452, 8065, 8730, 9678, 14517, 16130, 17460, 19356, 24195, 29034, 32260, 48390, 58068, 72585, 96780, 145170, 156461, 290340, 312922, 469383, 625844, 782305, 938766, 1408149, 1564610, 1877532, 2346915, 2816298, 3129220, 4693830, 5632596, 7040745, 9387660, 14081490, 28162980]

約数ペア:

[(1, 28162980), (2, 14081490), (3, 9387660), (4, 7040745), (5, 5632596), (6, 4693830), (9, 3129220), (10, 2816298), (12, 2346915), (15, 1877532), (18, 1564610), (20, 1408149), (30, 938766), (36, 782305), (45, 625844), (60, 469383), (90, 312922), (97, 290340), (180, 156461), (194, 145170), (291, 96780), (388, 72585), (485, 58068), (582, 48390), (873, 32260), (970, 29034), (1164, 24195), (1455, 19356), (1613, 17460), (1746, 16130), (1940, 14517), (2910, 9678), (3226, 8730), (3492, 8065), (4365, 6452), (4839, 5820)]