81723900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{331}}^1\times {\mathrm{823}}^1$

素因数の和:1171

約数の個数: 72

約数和(自身を含む): 237457024

約数和(自身を除く): 155733124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 331, 662, 823, 993, 1324, 1646, 1655, 1986, 2469, 3292, 3310, 3972, 4115, 4938, 4965, 6620, 8230, 8275, 9876, 9930, 12345, 16460, 16550, 19860, 20575, 24690, 24825, 33100, 41150, 49380, 49650, 61725, 82300, 99300, 123450, 246900, 272413, 544826, 817239, 1089652, 1362065, 1634478, 2724130, 3268956, 4086195, 5448260, 6810325, 8172390, 13620650, 16344780, 20430975, 27241300, 40861950, 81723900]

約数ペア:

[(1, 81723900), (2, 40861950), (3, 27241300), (4, 20430975), (5, 16344780), (6, 13620650), (10, 8172390), (12, 6810325), (15, 5448260), (20, 4086195), (25, 3268956), (30, 2724130), (50, 1634478), (60, 1362065), (75, 1089652), (100, 817239), (150, 544826), (300, 272413), (331, 246900), (662, 123450), (823, 99300), (993, 82300), (1324, 61725), (1646, 49650), (1655, 49380), (1986, 41150), (2469, 33100), (3292, 24825), (3310, 24690), (3972, 20575), (4115, 19860), (4938, 16550), (4965, 16460), (6620, 12345), (8230, 9930), (8275, 9876)]