20789700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 108

約数和(自身を含む): 63360528

約数和(自身を除く): 42570828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 46, 50, 60, 69, 75, 92, 100, 115, 131, 138, 150, 230, 262, 276, 300, 345, 393, 460, 524, 529, 575, 655, 690, 786, 1058, 1150, 1310, 1380, 1572, 1587, 1725, 1965, 2116, 2300, 2620, 2645, 3013, 3174, 3275, 3450, 3930, 5290, 6026, 6348, 6550, 6900, 7860, 7935, 9039, 9825, 10580, 12052, 13100, 13225, 15065, 15870, 18078, 19650, 26450, 30130, 31740, 36156, 39300, 39675, 45195, 52900, 60260, 69299, 75325, 79350, 90390, 138598, 150650, 158700, 180780, 207897, 225975, 277196, 301300, 346495, 415794, 451950, 692990, 831588, 903900, 1039485, 1385980, 1732475, 2078970, 3464950, 4157940, 5197425, 6929900, 10394850, 20789700]

約数ペア:

[(1, 20789700), (2, 10394850), (3, 6929900), (4, 5197425), (5, 4157940), (6, 3464950), (10, 2078970), (12, 1732475), (15, 1385980), (20, 1039485), (23, 903900), (25, 831588), (30, 692990), (46, 451950), (50, 415794), (60, 346495), (69, 301300), (75, 277196), (92, 225975), (100, 207897), (115, 180780), (131, 158700), (138, 150650), (150, 138598), (230, 90390), (262, 79350), (276, 75325), (300, 69299), (345, 60260), (393, 52900), (460, 45195), (524, 39675), (529, 39300), (575, 36156), (655, 31740), (690, 30130), (786, 26450), (1058, 19650), (1150, 18078), (1310, 15870), (1380, 15065), (1572, 13225), (1587, 13100), (1725, 12052), (1965, 10580), (2116, 9825), (2300, 9039), (2620, 7935), (2645, 7860), (3013, 6900), (3174, 6550), (3275, 6348), (3450, 6026), (3930, 5290)]