20894130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5399}}^1$

素因数の和:5455

約数の個数: 48

約数和(自身を含む): 55598400

約数和(自身を除く): 34704270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5399, 10798, 16197, 26995, 32394, 48591, 53990, 80985, 97182, 161970, 232157, 242955, 464314, 485910, 696471, 1160785, 1392942, 2089413, 2321570, 3482355, 4178826, 6964710, 10447065, 20894130]

約数ペア:

[(1, 20894130), (2, 10447065), (3, 6964710), (5, 4178826), (6, 3482355), (9, 2321570), (10, 2089413), (15, 1392942), (18, 1160785), (30, 696471), (43, 485910), (45, 464314), (86, 242955), (90, 232157), (129, 161970), (215, 97182), (258, 80985), (387, 53990), (430, 48591), (645, 32394), (774, 26995), (1290, 16197), (1935, 10798), (3870, 5399)]