19328940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1471}}^1$

素因数の和:1559

約数の個数: 72

約数和(自身を含む): 59474688

約数和(自身を除く): 40145748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1471, 2190, 2628, 2942, 3285, 4380, 4413, 5884, 6570, 7355, 8826, 13140, 13239, 14710, 17652, 22065, 26478, 29420, 44130, 52956, 66195, 88260, 107383, 132390, 214766, 264780, 322149, 429532, 536915, 644298, 966447, 1073830, 1288596, 1610745, 1932894, 2147660, 3221490, 3865788, 4832235, 6442980, 9664470, 19328940]

約数ペア:

[(1, 19328940), (2, 9664470), (3, 6442980), (4, 4832235), (5, 3865788), (6, 3221490), (9, 2147660), (10, 1932894), (12, 1610745), (15, 1288596), (18, 1073830), (20, 966447), (30, 644298), (36, 536915), (45, 429532), (60, 322149), (73, 264780), (90, 214766), (146, 132390), (180, 107383), (219, 88260), (292, 66195), (365, 52956), (438, 44130), (657, 29420), (730, 26478), (876, 22065), (1095, 17652), (1314, 14710), (1460, 13239), (1471, 13140), (2190, 8826), (2628, 7355), (2942, 6570), (3285, 5884), (4380, 4413)]